Re: Binoviewer Comments:


Jul 28, 2006

 


----------------------------

#10620 Jul 28, 2006

Thanks one and all for all your comments thus far, anyone

else out there have anything to offer for Binoviewing I am all ears! I

wish to lessen the learning curve by others experience!



Thanks, Ron S



----------------------------

#10626 Jul 29, 2006

Ron,



I prefer the Vernonscope binoviewer. I have been using mine since last

October. You can use it straight thru' without a telecentric or Barlow.

I also use it with a zenith prism.



On the Sun in H-alpha, with a Baader x2 telecentric & Solar Spectrun

SO1.5 .0.3 filter unit, I use it either straight thru' or with either a

zenith prism mounted behind the filter, or a 45. Amici.



In all these circumstances there is adequate back focus.



Vernonscope Brandon Orthoscopic eyepieces I also rate highly. Don Yeir

made me a binoviewer matched set. I use them all the time on my

TEC140APO.



Take a look at:

brayebrookobservatory.org/BrayObsWebSite/HOMEPAGE/

Vernonscope%20Review.html



Chris

On Friday, Jul 28, 2006, at 19:34 Europe/London, rsampsonus wrote:



>

>

> Thanks one and all for all your comments thus far, anyone

> else out there have anything to offer for Binoviewing I am all ears! I

> wish to lessen the learning curve by others experience!

>

> Thanks, Ron S

>

>

---------------

---------------

Brayebrook Observatory

30 Harlton Road

Little Eversden

Cambridge

CB3 7HB

United Kingdom

tel 0044 1223 263481

www.brayebrookobservatory.org/

Chris Lord

---------------

---------------



----------------------------

#10629 Jul 29, 2006

I will add that TeleVue binviewer is also functional without any corrector, but it is both heavier, and longer��when attached to a diagonal that is not part of the system like the Baader prism diagonal that has a significantly lower/shorter profile.�� This is significant when slewing the scope around as there is significant load on the back end when the binvoviewer is long ... especially when using heavy EPs.�� I learned this��the hard way on��the first night that I had my TEC200ED set up on concrete patio :-(.�� I was unfamiliar with the collet type locking mechanism employed by TEC, but the extra load of the longer binoviewer enabled this to actually��happen.����While slewing, the entire binoviewer system swung around (approx 90 degrees) before dropping off the back and landing on the concrete :-(.�� I lost the binoviewer and BOTH Televue EPs, not to mention disfiguring of my Maxbright��diagonal��:-O!�� I use the Baader mark 5 now ;-).��IMHO, this is definitely noteworthy and should be considered when choosing a binoviewer.������Mark������

-----Original Message-----

From: chrislord@...

To: tec-scopes@yahoogroups.com

Sent: Sat, 29 Jul 2006 3:19 AM

Subject: Re: [tec-scopes] Binoviewer Comments:



Ron,��

��

I prefer the Vernonscope binoviewer. I have been using mine since last October. You can use it straight thru' without a telecentric or Barlow. I also use it with a zenith prism.��

��

On the Sun in H-alpha, with a Baader x2 telecentric & Solar Spectrun SO1.5 .0.3 filter unit, I use it either straight thru' or with either a zenith prism mounted behind the filter, or a 45. Amici.��

��

In all these circumstances there is adequate back focus.��

��

Vernonscope Brandon Orthoscopic eyepieces I also rate highly. Don Yeir made me a binoviewer matched set. I use them all the time on my TEC140APO.��

��

Take a look at: brayebrookobservatory.org/BrayObsWebSite/HOMEPAGE/Vernonscope%20Review.html��

��

Chris��

��

On Friday, Jul 28, 2006, at 19:34 Europe/London, rsampsonus wrote:��

�� >��

>��

> Thanks one and all for all your comments thus far, anyone��

> else out there have anything to offer for Binoviewing I am all ears! I��

> wish to lessen the learning curve by others experience!��

>��

> Thanks, Ron S��

>��

>��

---------------

---------------

Brayebrook Observatory��

30 Harlton Road��

Little Eversden��

Cambridge��

CB3 7HB��

United Kingdom��

tel 0044 1223 263481��

www.brayebrookobservatory.org/��

Chris Lord��

---------------

---------------



Check out AOL.com today. Breaking news, video search, pictures, email and IM. All on demand. Always Free.



----------------------------

#10630 Jul 29, 2006

While slewing, the entire binoviewer system swung around (approx 90

degrees) before dropping off the back and landing on the concrete :-

(. I lost the binoviewer and BOTH Televue EPs, not to mention

disfiguring of my Maxbright diagonal :-O! I use the Baader mark 5

now ;-).



Something nearly as devistating happened to my binoviewer, I had a

pair of Nagler 9mm type I eyepieces on, the viewer suddenly swung

aroung and the two Nagles went on flying to the ground, fortunately

the rig was setup on the lawn and both eyepieces survived the soft

landing.

The important lesson for me after that affair was to keep an eye on

the viewer to make sure that it always remained facing straight up,

none of my scopes, AP or TEC, can safely support a loaded viewer that

is tilting sidways.



Thanks,

Vahe







----------------------------

#10632 Jul 30, 2006

Whenevr I binoview, before slewing to a new target, I remove the

binoviewer, replace it with a 26mm Nagler, find the new target and

then replace the binoviwer. It is tedious but removes the problems

associated with all that weight and awkward configuration hanging

off the end of a diagonal.



It could get expensive in a hurry losing 2 - 16mm Naglers, binoviwer

and a diagonal.....

--- In tec-scopes@yahoogroups.com, "vahe352" vahe@...> wrote:

>

> While slewing, the entire binoviewer system swung around (approx

90

> degrees) before dropping off the back and landing on the

concrete :-

> (. I lost the binoviewer and BOTH Televue EPs, not to mention

> disfiguring of my Maxbright diagonal :-O! I use the Baader mark 5

> now ;-).

>

> Something nearly as devistating happened to my binoviewer, I had a

> pair of Nagler 9mm type I eyepieces on, the viewer suddenly swung

> aroung and the two Nagles went on flying to the ground,

fortunately

> the rig was setup on the lawn and both eyepieces survived the soft

> landing.

> The important lesson for me after that affair was to keep an eye

on

> the viewer to make sure that it always remained facing straight

up,

> none of my scopes, AP or TEC, can safely support a loaded viewer

that

> is tilting sidways.

>

> Thanks,

> Vahe

>



----------------------------

#10633 Jul 30, 2006

"vahe352" vahe@...> wrote: >

> While slewing, the entire binoviewer system swung around (approx 90

> degrees) before dropping off the back and landing on the concrete :-

> (. I lost the binoviewer and BOTH Televue EPs, not to mention

> disfiguring of my Maxbright diagonal :-O! I use the Baader mark 5

> now ;-).

>

> Something nearly as devistating happened to my binoviewer, I had a

> pair of Nagler 9mm type I eyepieces on, the viewer suddenly swung

> aroung and the two Nagles went on flying to the ground, fortunately

> the rig was setup on the lawn and both eyepieces survived the soft

> landing.

> The important lesson for me after that affair was to keep an eye on

> the viewer to make sure that it always remained facing straight up,

> none of my scopes, AP or TEC, can safely support a loaded viewer that

> is tilting sidways.



I don't understand the problem. Since I am taller than most at our

observing sessions my binoviewer spends much of its time canted off to

the side for others without any slippage at all, and I can hold the

binoviewer upside down or pick it up by the eyepieces and the eyepieces

won't come out.



Paul Gustafson



----------------------------

#10634 Jul 30, 2006

Paul,



Can you please detail your set up viz a vis rackmount connection

accessories.



Chris

On Sunday, Jul 30, 2006, at 17:42 Europe/London, Paul Gustafson wrote:



> I don't understand the problem. Since I am taller than most at our

> observing sessions my binoviewer spends much of its time canted off to

> the side for others without any slippage at all, and I can hold the

> binoviewer upside down or pick it up by the eyepieces and the eyepieces

> won't come out.

>

> Paul Gustafson

>

---------------

---------------

Brayebrook Observatory

30 Harlton Road

Little Eversden

Cambridge

CB3 7HB

United Kingdom

tel 0044 1223 263481

www.brayebrookobservatory.org/

Chris Lord

---------------

---------------



----------------------------

#10635 Jul 30, 2006

I don't understand the problem. Since I am taller than most at our

> observing sessions my binoviewer spends much of its time canted off

to > the side for others without any slippage at all, and I can hold the

> binoviewer upside down or pick it up by the eyepieces and the

eyepieces > won't come out.



Eyepieces coming out and falling was my fault, the eyepiece holding

screws were not fully tightened as I was trying to merge images.

My only scope that is capable of holding a binoviewer in any position

is the TEC6, it has three holding screws, all other scopes have only

one holding screw and that makes a big difference.

Also I use a Baader viewer with Lapides eyepeice adjusters, much

heavier than the stock viewer and a lot harder to support.



Thanks,

Vahe



----------------------------

#10636 Jul 30, 2006

�������������� Idon't understand the problem. Since I am taller than most at our

> observing sessions my binoviewer spends much of its time canted off

to > the side for others without any slippage at all, and I can hold the

> binoviewer upside down or pick it up by the eyepieces and the

eyepieces > won't come out.I���ve only dropped an eyepiece with myMk-V. I think the older holders were ���safer���, with the Mk-4, youput the eyepieces in, lock them down using a motion whose axis is counter toall other natural motions. With the Mk-5, you use a locking/unlocking motionvery much like people normally do grabbing binoculars. People have to grab the binoand adjust to their IPD and they definitely can unlock the eyepiece if they arenew to it. I���ve dropped one eyepiece myself (and I sure as heck didn���tleave it unlocked) and another person dropped my panoptic to the deck. I think my ideal Mark-6 would have brassbands under locking screws like the Lapides had. With dual rotating eyepieceholders for fine focus, but without the complexities of preserving therotational position of the eyepiece during fine focusing (like the Lapides did.)Mike Clemens��







----------------------------

#10637 Jul 30, 2006

CHRIS LORD chrislord@...> wrote: > Can you please detail your set up viz a vis

> rackmount connection accessories.



AP focusers with single and with triple thumbscrews, older AP/Baader

binoviewer with Lapides eyepiece holders and Baader MkV binoviewer,

both with supplied Baader prism diagonal, eyepieces as large as 22

Panoptics. However, I only tried the shake it upside down and pick it

up by the eyepieces with the MkV. Finger tight snugging of the

thumbscrews seems to be sufficient.



Was the issue with slippage or a connection unscrewing?



Paul Gustafson



----------------------------

#10639 Jul 31, 2006

Well, even with my Baader bino I now��keep it tethered to the finder bracket.�� That will NOT happen to me twice!��Mark����

��

-----Original Message-----

From: vahe@...

To: tec-scopes@yahoogroups.com

Sent: Sat, 29 Jul 2006 7:47 PM

Subject: [tec-scopes] Re: Binoviewer Comments:

While slewing, the entire binoviewer system swung around (approx 90

degrees) before dropping off the back and landing on the concrete :-

(. I lost the binoviewer and BOTH Televue EPs, not to mention

disfiguring of my Maxbright diagonal :-O! I use the Baader mark 5

now ;-).



Something nearly as devistating happened to my binoviewer, I had a

pair of Nagler 9mm type I eyepieces on, the viewer suddenly swung

aroung and the two Nagles went on flying to the ground, fortunately

the rig was setup on the lawn and both eyepieces survived the soft

landing.

The important lesson for me after that affair was to keep an eye on

the viewer to make sure that it always remained facing straight up,

none of my scopes, AP or TEC, can safely support a loaded viewer that

is tilting sidways.



Thanks,

Vahe



----------------------------

#10640 Jul 31, 2006

Knock on wood when you say that Paul.�� For almost��5 years I would have said the SAME THING ;-)��Mark����

��

-----Original Message-----

From: laservet@...

To: tec-scopes@yahoogroups.com

Sent: Sun, 30 Jul 2006 12:42 PM

Subject: [tec-scopes] Re: Binoviewer Comments:

"vahe352" vahe@...> wrote: >

> While slewing, the entire binoviewer system swung around (approx 90

> degrees) before dropping off the back and landing on the concrete :-

> (. I lost the binoviewer and BOTH Televue EPs, not to mention

> disfiguring of my Maxbright diagonal :-O! I use the Baader mark 5

> now ;-).

>

> Something nearly as devistating happened to my binoviewer, I had a

> pair of Nagler 9mm type I eyepieces on, the viewer suddenly swung

> aroung and the two Nagles went on flying to the ground, fortunately

> the rig was setup on the lawn and both eyepieces survived the soft

> landing.

> The important lesson for me after that affair was to keep an eye on

> the viewer to make sure that it always remained facing straight up,

> none of my scopes, AP or TEC, can safely support a loaded viewer that

> is tilting sidways.



I don't understand the problem. Since I am taller than most at our

observing sessions my binoviewer spends much of its time canted off to

the side for others without any slippage at all, and I can hold the

binoviewer upside down or pick it up by the eyepieces and the eyepieces

won't come out.



Paul Gustafson



----------------------------

#10642 Jul 31, 2006

"Slippage", but I HAVE had the��2" nose piece��on the mark 5 diagonal loosen��so that the loaded binoviewer did the spinning thing as well.�� Only difference, and a BIG one,��was that nothing actually dropped to the ground that time.����Attachment of the 2" barrel isn't the greatest design on the mark 5 either,��because, if you��crank it down too tight, it can lock up and become a real chore to get��off.�� I had to use the contraption for loosening an oil filter to get it off once before!�� But if the barrel isn't tight enough, it can break free��to allow the binoviewer to spin and possibly drop the EPs as��reported by another person in this thread.�� I would like to see compression��ring for��this too.����Mark

��

-----Original Message-----

From: laservet@...

To: tec-scopes@yahoogroups.com

Sent: Sun, 30 Jul 2006 3:00 PM

Subject: [tec-scopes] Re: Binoviewer Comments:

CHRIS LORD chrislord@. ..> wrote: > Can you please detail your set up viz a vis

> rackmount connection accessories.



AP focusers with single and with triple thumbscrews, older AP/Baader

binoviewer with Lapides eyepiece holders and Baader MkV binoviewer,

both with supplied Baader prism diagonal, eyepieces as large as 22

Panoptics. However, I only tried the shake it upside down and pick it

up by the eyepieces with the MkV. Finger tight snugging of the

thumbscrews seems to be sufficient.



Was the issue with slippage or a connection unscrewing?



Paul Gustafson



----------------------------

#10643 Jul 31, 2006

Paul,��Note that there are two responses going on here.�� I originally spoke of the entire binvoiewer slipping off the back of the scope��and on to the ground.�� Chris has focused on EP's slipping out of the binoviewer only.�� BOTH cases involved slippage though.��Mark������

��

-----Original Message-----

From: chrislord@...

To: tec-scopes@yahoogroups.com

Sent: Sun, 30 Jul 2006 3:07 PM

Subject: Re: [tec-scopes] Re: Binoviewer Comments:

Paul,��

��

The problem is slippage with the Baader click lock.��

��

Chris��

��

On Sunday, Jul 30, 2006, at 20:00 Europe/London, Paul Gustafson wrote:��

�� > AP focusers with single and with triple thumbscrews, older AP/Baader��

> binoviewer with Lapides eyepiece holders and Baader MkV binoviewer,��

> both with supplied Baader prism diagonal, eyepieces as large as 22��

> Panoptics. However, I only tried the shake it upside down and pick it��

> up by the eyepieces with the MkV. Finger tight snugging of the��

> thumbscrews seems to be sufficient.��

>��

> Was the issue with slippage or a connection unscrewing?��

>��

> Paul Gustafson��

>��

---------------

---------------

Brayebrook Observatory��

30 Harlton Road��

Little Eversden��

Cambridge��

CB3 7HB��

United Kingdom��

tel 0044 1223 263481��

www.brayebrookobservatory.org/��

Chris Lord��

---------------

---------------



Check out AOL.com today. Breaking news, video search, pictures, email and IM. All on demand. Always Free.







----------------------------

#10644 Jul 31, 2006

--- In tec-scopes@yahoogroups.com, pandrolmb@... wrote: > snip--

ground that time. Attachment of the 2" barrel isn't the greatest

design on the mark 5 either, because, if you crank it down too tight,

it can lock up and become a real chore to get off. I had to use the

contraption for loosening an oil filter to get it off once before!

But if the barrel isn't tight enough, it can break free to allow the

binoviewer to spin and possibly drop the EPs as reported by another

person in this thread. I would like to see compression ring for this

too.

---



Hmm. Seems you may have answered my question (in another thread)

regarding use of the Barcon. Using the extension tube with it's

compression fitting might be safer than srewing/unscrewing the lens

assembly into the diagonal assembly. Doesn't seem it would be less

safe anyway. Thanks!



Tom.



----------------------------

#10645 Jul 31, 2006

--- In tec-scopes@yahoogroups.com, pandrolmb@... wrote:

> Note that there are two responses going on here. I originally spoke

of the > entire binvoiewer slipping off the back of the scope and on to the

ground. > Chris has focused on EP's slipping out of the binoviewer only. BOTH

> cases involved slippage though.

>



Mark and all,



I have been following this thread with interest since I have the same

setup.



Might I make a suggestion for others worried about this? Set up your

scope during the day in your living room and then EXPERIMENT. Try

different nosepiece configurations, diagonals, eyepieces, etc. Try

loosening fittings just a tiny bit and see what happens. Move the

telescope around to different angles. In short, see what's happening

in the light. You will probably encounter every problem described here.



My own personal conclusions are 1) Even though I store the Mk V with

prism diagonal and nosepiece attached, I had better double-check the

tightness of all fittings every time I use it and 2) like Vahe, keep

it vertical at all times . No long EQ slews in the dark without

removing the Mk V first! (an inherent advantage of my Discmount) I

have had no problems to date.



Knocking on wood as I write this,



Milt



----------------------------

#10647 Jul 31, 2006

Thanks Mark. I hadn't considered rotation about the threaded

connections. Your comments make this an easy decision. For both safety

and ease of use, it seems far better to use the Barcon via the

compression ring fitting on the standard extension tube rather than

screw and unscrew the lens assembly in the dark. For safety reasons,

I'd want the screw in fitting very tight, but that becomes a pain when

wanting to remove it for lower power. Repeating this process during a

night of observing I'd be sure to screw up!



Now that that's done, back to thinking about eyepiece pairs.

Considering 1.25x and 4x I think something like 24mm, 16mm, 11mm. That

gives 51x (low power DSO), 76x and 111x (mid power DSO), 163x (hi

power DSO especially globular clusters), 245x (very hi power mostly

for planets, moon, double stars), 356x (crazy high power for moon,

double stars and on occassion Mars and Saturn).



Tom.

--- In tec-scopes@yahoogroups.com, pandrolmb@... wrote:

>

> Tom,

>

> When it comes to using the Barcon, and I use one quite often with

the mark 5, I don't think the integrity of the connection differs

either way. The threads that connect the 2" barrel with the prism

diagonal will see the same load whether the Barcon is threaded

directly to the end of that barrel, or if the Barcon assembly is

attached to the 2" barrel using the compression ring. As soon as the

binoviewer reaches horizontal position when slewing, moment arm will

either try to tighten the threaded connection at the diagonal, or, if

on the other side, loosen it, using either Barcon configuration. Only

the magnification will differ.

>

> The moment arm problem is intensified by the overall length of the

binoviewer/diagonal assembly too. The 2" prism diagonal w/mark 5

system is over an inch shorter than most of the competition. Plug in

a couple of heavy EPs and that inch can be measured in pounds (torque)

at 90 degrees!

>

> So don't worry about WHERE the Barcon is located unless you are

adjusting the power. And IMHO, just crank down hard on the 2" barrel

to prism diagonal connection and plan on leaving the barrel on

permanently ... like almost ALL of the others! That's what I did and

I can't say enough about how happy I am with the Mark 5 system!

>

> Mark



----------------------------

#10648 Jul 31, 2006

��>

> 2) like Vahe, keep

> it vertical at alltimes . I usually observe from the right side ofthe scope so the binoviewer and visual train is always tightening everything. Ihave had the bino-Swing occur a few times and I am not all the wild about it. And boy do I detest the new HTML emails YahooGroupssends, I need to turn all those options off.Mike Clemens



----------------------------

#10650 Aug 1, 2006

pandrolmb@... wrote:

> Note that there are two responses going

> on here. I originally spoke of the entire

> binvoiewer slipping off the back of the

> scope and on to the ground. Chris has

> focused on EP's slipping out of the binoviewer

> only. BOTH cases involved slippage though.



Mark,



I see. I've become quite casual about it but will pay more attention

in the future. The AP compression ring with three thumbscrews

shouldn't have any slippage issues, but the smaller scopes have one

thumbscrew and may require more care. I also hang the bv off to the

right so any threaded fittings will tighten, not loosen, from the

weight. FWIW, in my original AP/Baader bv the Baader 2" nosepiece

that threads into the prism diagonal would screech and chatter when

screwed in and I was never quite sure it was seated all the way. I

replaced it with a 2" nosepiece made by AP and it would thread in

smoothly and snug down properly.



Paul Gustafson







----------------------------

#10656 Aug 1, 2006

Paul,��All of my scopes, with the exception of the TEC, have��2" compression ring connections at��the back end.�� And��with that arrangement, I've never had any serious slipping problems (three OR single screw types).����Now that I am thoroughly familiar with my TEC APO, I don't have any significant problems with the collet type connection either, but I keep it tight to avoid another disaster, and sometimes it is��quite hard to loosen, especially after a significant temperature change during observation.�� In the end though, while I prefer the compression ring adapters,��I REALLY prefer my TEC200ED APO :-)!�� I can��live with the��collet ;-).��Mark��

��

-----Original Message-----

From: laservet@...

To: tec-scopes@yahoogroups.com

Sent: Tue, 1 Aug 2006 6:02 AM

Subject: [tec-scopes] Re: Binoviewer Comments:

pandrolmb@.. . wrote:

> Note that there are two responses going

> on here. I originally spoke of the entire

> binvoiewer slipping off the back of the

> scope and on to the ground. Chris has

> focused on EP's slipping out of the binoviewer

> only. BOTH cases involved slippage though.



Mark,



I see. I've become quite casual about it but will pay more attention

in the future. The AP compression ring with three thumbscrews

shouldn't have any slippage issues, but the smaller scopes have one

thumbscrew and may require more care. I also hang the bv off to the

right so any threaded fittings will tighten, not loosen, from the

weight. FWIW, in my original AP/Baader bv the Baader 2" nosepiece

that threads into the prism diagonal would screech and chatter when

screwed in and I was never quite sure it was seated all the way. I

replaced it with a 2" nosepiece made by AP and it would thread in

smoothly and snug down properly.



Paul Gustafson



----------------------------

#10657 Aug 1, 2006

Hi Mark,

You also have 2 additional options if you prefer a compression ring.

Starlight Instruments sells 2 alternate backs for the 3545 focuser.

One has the AP 2.7" thread with which you can use the AP ADA2003 2"

compression ring adapter, the other back has a 2" compression ring

built in (ccomes with 2 lock screws, but is drilled for 3 - request the

3rd when you order). IIRC, both are somewhere around $70-$85.

Regards,

Kurt

--- In tec-scopes@yahoogroups.com, pandrolmb@... wrote:

>

> Paul,

>

> All of my scopes, with the exception of the TEC, have 2" compression

ring connections at the back end. And with that arrangement, I've

never had any serious slipping problems (three OR single screw types).

Now that I am thoroughly familiar with my TEC APO, I don't have any

significant problems with the collet type connection either, but I keep

it tight to avoid another disaster, and sometimes it is quite hard to

loosen, especially after a significant temperature change during

observation. In the end though, while I prefer the compression ring

adapters, I REALLY prefer my TEC200ED APO :-)! I can live with the

collet ;-).

>

> Mark

>



----------------------------

#10660 Aug 2, 2006

Thank you SO much Kurt :-),��I had forgotten about that.�� I actually called them the day after I lost my TV binoviewer, but ended up buying the Baader and just got stupid over time in forgetting about it.�� We all have our weeknesses ;-).�� Anyway, I'm about to call them NOW!�� The collet is nicely built, and holds the accessories perfectly, but sometimes it's a real DOG to��loosen.�� I don't know if you noticed my post, by I actually had to buy an oil filter removal tool to loosen the collet once :-O!�� I now have auto accessories in my EP box��;-).��Many thanks��again!��Mark��

��

-----Original Message-----

From: mihalco@...

To: tec-scopes@yahoogroups.com

Sent: Tue, 1 Aug 2006 4:19 PM

Subject: [tec-scopes] Re: Binoviewer Comments:

Hi Mark,

You also have 2 additional options if you prefer a compression ring.

Starlight Instruments sells 2 alternate backs for the 3545 focuser.

One has the AP 2.7" thread with which you can use the AP ADA2003 2"

compression ring adapter, the other back has a 2" compression ring

built in (ccomes with 2 lock screws, but is drilled for 3 - request the

3rd when you order). IIRC, both are somewhere around $70-$85.

Regards,

Kurt

--- In tec-scopes@yahoogro ups.com, pandrolmb@.. . wrote:

>

> Paul,

>

> All of my scopes, with the exception of the TEC, have 2" compression

ring connections at the back end. And with that arrangement, I've

never had any serious slipping problems (three OR single screw types).

Now that I am thoroughly familiar with my TEC APO, I don't have any

significant problems with the collet type connection either, but I keep

it tight to avoid another disaster, and sometimes it is quite hard to

loosen, especially after a significant temperature change during

observation. In the end though, while I prefer the compression ring

adapters, I REALLY prefer my TEC200ED APO :-)! I can live with the

collet ;-).

>

> Mark

>



----------------------------

#10662 Aug 2, 2006

--- In tec-scopes@yahoogroups.com, pandrolmb@... wrote: >

> Thank you SO much Kurt :-),

>

> I actually had to buy an oil filter removal tool to loosen the

> collet once :-O! I now have auto accessories in my EP box ;-).



Sears sells at least two sizes of rubber strap wrenches and they

are very handy for many things you don't want to damage. I wouldn't

be without a pair of each size.



Harvey







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