How to add Camera lenses to StarryNight

[blinky]

Hello,

I am looking to add a couple of lenses to the equipment list on Starry Night. Do I just enter them as telescopes? The other thing is how do I set the focal length? Say I want to create a 200mm F5.6 lens, I have entered the aperature as 35mm and the FStop as 5.6 this gives a length of 196mm. Is this the way to do it? And does it affect things as this is a DSLR sensor not a full 35mm sensor?

I am trying to get things setup so that I can take an image of Makrians chain, it looks like I may only need an aperature of around 100mm???

[barkis]

See if this can help you Craig.

Ron.

http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm

[SteveL]

Good job! Thanks for that....

[Psychobilly]

Very useful link Ron

How's the lens mounting on the QHY8 going Steve?

Billy...

[SteveL]

I have something in the post that will get me sorted (It already works with the M25C, but had no clear skies since then)

[Psychobilly]

Bloomin Weather...

[blinky]

Um... I am still confused! So if I want to create a 200mm lens in starry night what do I enter in the aperature and the F Stop settings? As I said there is no option for focal length and how do I know what the aperature of the lens is?