I spent some time yesterday afternoon rigging up a counterbalance on my 4.5" refractor and attaching a DSLR with a 3x Barlow lens in anticipation of a clear sky. This duly occurred, so I set up in the back garden and began trying to image Jupiter, Mars and Saturn: the results are below.
I now realise a few things about these 'cobbled together' attempts at astro-imaging:
* The focus on my 'scope is not sensitive enough
* Without an equatorial mount, the ISO has to be too high and the f-stop too low for a sharp image
* What you see is not what you get.
I think I've just about reached the limit of what is possible with a low-end refractor on an altazimuth mount. The thing is, I'm 70 soon. Is there any point in spending a couple of thousand pounds to take better quality photographs that no-one will ever really look at?
3 comments:
Go for it David. Think of the pleasure it will give you - forget the age thing.
if you can afford it why not, you should have at least 20 years left in you
Thanks so much, ladies!
Now where did I put that two 'grand'? ;)
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