The cressent Moon and Vega

[Daveskywill]

Greatings fellow astrophotographers:

This is David again. And I've just taken the cressent Moon picture using a 200mm lens (35mm however).

And I photographed the star Vega. However I need to take a dark frame and subtract. And I need to know if DeepSkyStacker (program) will allow me to subtract darks or if I need some other program to do that?

Both pics were taken in RAW format and then converted and downsized.

Thank you for all of your support.

See you.

[Daveskywill]

I forgot to tell you: the Moon has the Earth shine in it.

And the exposure time for the Vega picture is 15 seconds, but was I think a high ISO.

[renormalised]

DSS will do everything you want to do:)

[renormalised]

You're using an achro refractor??....I can see the CA, especially around Vega. You need a fringe killer or a semi-apo filter.

[Daveskywill]

The Vega picture was taken with a VARI 8000S 420-800mm (zoom) F8.3-16 Kenko (35mm lens intended for Pentax K cameras). I used an adapter that converts it to Canon.

I'm not sure all about lens, but it says it has 4 elements in 2 groups and the front lens is multi-coated a green color.

It seems like a nice enough lens and I didn't pay a whole lot for it. But I'm not sure about it's application in astrophotography.

Do people here think that it would be alright for the Moon, but not for star and deep sky stuff?

Of course at that high F number, it makes things seem dim.

PS: anyway I'll be getting my Meade LX200 GPS 10" F10 repaired soon (the tracking wasn't right, and later on turned the focus knob too many times one way and got the focus lock knob a little loose too). And so after it's fixed, I'd like to try out doing some photos of (astro) stuff like the Moon, planets and then deep space. And I've already got the 2" prime focus adaptor, just need a nice 2" barlow (tele-negative) from Meade and I'd be ready to take some planetary photo's too.

I've already got 2, 2" eyepieces: a 31mm Erfle, and a 56mm Meade Super Plossl.

Does anyone have suggestions for future eyepieces?

David