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I've quite enjoyed using my 350D on my 12" LX200 classic with the F/6.3 reducer. F/10 is not so rewarding, and F/3.3 I've never got good results from - huge distortion. But, I have found the 6.3 gives very nice images with the 350D.
hmm.. and to add to the debate, I haven't used Mirror Lock yet... so haven't had a problem with shake becaue of it. Think I've been sticking around 400ASA 90% of the time too. Almost exclusively doing 2 & 5 minute exposures.
Definitely always use it with noise rduction turned off, after 2 exposures I realised what it was doing and got tired of waiting for it to take a dark for every exposure when I could just do perhaps 8 for the night and subtract them from all images.
Roger.
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