Re: Registar or PS for Combining different focal length images


Sep 7, 2004

 


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

#13644 Sep 7, 2004

Hi all



I am wondering what the best way is for combining images from

different focal lengths on the same scope or different scopes.



I have a small project in which I have a wide field of the Bubble

Nebula taken with a TMB 115mm f/7 with a .62 focal reducer for

f/4.34. I want to overlay, 5 hours of RGB and Ha taken with the same

scope but at f/7.



I suppose one could do it with PS but I am wondering if Registar

would do it better with the appropriate stretching, aligning needed.



Any one have experiance with Registar for this process?



Thanks in advance.



Bob - (also posted on CCDCollab forum)



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

#13645 Sep 7, 2004

Bob,



Can't you just use MaximDL to combine the LRGB with the two-star

matching, that should scale and rotate the images to match.

I've done similar processes before with good results.



John



--- In MaxImDL@yahoogroups.com, "Robert Anderson" bob@t...> wrote:

> Hi all

>

> I am wondering what the best way is for combining images from

> different focal lengths on the same scope or different scopes.

>

> I have a small project in which I have a wide field of the Bubble

> Nebula taken with a TMB 115mm f/7 with a .62 focal reducer for

> f/4.34. I want to overlay, 5 hours of RGB and Ha taken with the

same

> scope but at f/7.

>

> I suppose one could do it with PS but I am wondering if Registar

> would do it better with the appropriate stretching, aligning needed.

>

> Any one have experiance with Registar for this process?

>

> Thanks in advance.

>

> Bob - (also posted on CCDCollab forum)



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

#13677 Sep 9, 2004

Hi John



I will try it out tonight and see how it works. Had not thought of

that approach. We have the remenants of Frances providing lots of

rain so some time to spend on image processing.



Thanks



Bob



--- In MaxImDL@yahoogroups.com, "winfij" winfij@n...> wrote:

> Bob,

>

> Can't you just use MaximDL to combine the LRGB with the two-star

> matching, that should scale and rotate the images to match.

> I've done similar processes before with good results.

>

> John

>

>

> --- In MaxImDL@yahoogroups.com, "Robert Anderson" bob@t...> wrote:

> > Hi all

> >

> > I am wondering what the best way is for combining images from

> > different focal lengths on the same scope or different scopes.

> >

> > I have a small project in which I have a wide field of the Bubble

> > Nebula taken with a TMB 115mm f/7 with a .62 focal reducer for

> > f/4.34. I want to overlay, 5 hours of RGB and Ha taken with the

> same

> > scope but at f/7.

> >

> > I suppose one could do it with PS but I am wondering if Registar

> > would do it better with the appropriate stretching, aligning

needed.

> >

> > Any one have experiance with Registar for this process?

> >

> > Thanks in advance.

> >

> > Bob - (also posted on CCDCollab forum)



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

#13683 Sep 9, 2004

Robert Anderson wrote:

> I will try it out tonight and see how it works. Had not thought of

> that approach. We have the remenants of Frances providing lots of

> rain so some time to spend on image processing.



We're also seeing the remnants here in Ottawa. It's been raining hard

and continuously for about 12 hours now, and it's not supposed to stop

until tomorrow. The winds aren't strong enough to do any damage, but I

wouldn't be surprised if there was minor flooding in places.



Doug George



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

#13696 Sep 9, 2004

Doug



We can only imagine what the poor folks down south have gone through

from this rash of storms, (and more to come).



Cheers and stay dry, you'll have your new observatory open tomorrow

night, Clear Sky Report looks good.



Cheers



Bob



--- In MaxImDL@yahoogroups.com, "Douglas B. George" dgeorge@c...>

wrote: > Robert Anderson wrote:

>

> > I will try it out tonight and see how it works. Had not thought

of > > that approach. We have the remenants of Frances providing lots of

> > rain so some time to spend on image processing.

>

> We're also seeing the remnants here in Ottawa. It's been raining

hard > and continuously for about 12 hours now, and it's not supposed to

stop > until tomorrow. The winds aren't strong enough to do any damage,

but I > wouldn't be surprised if there was minor flooding in places.

>

> Doug George



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