Quote:
Originally Posted by bojan
I would avoid them.
If you are on low budget, IMO the better alternative (for astro photography) is to go for M42mm lenses ("Pentax") and associated M42-> EOS adapter.
There are good M42 lenses out there, and they will not cost you arm and leg.
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Appreciate your reply bojan, I will look into the m42 jobs, cheers !
Quote:
Originally Posted by astroboy
Hi Bob
I used a Kenko 1.4 ( pro model similar to Canon) with a Canon 300 F4L IS a lot for birding and I was very happy with it but never tried it for astro on the lens but did try it on a scope and it worked well.
Reviews on 1.4 vs 2x seem to favor the 1.4 , very little loss in quality.
Zane
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Thanx for your input Zane, sounds promising & may I ask what scope you used with it ?
I also fiqure the 1.4x is the safer bet, speshly considering the speed or F/Ratio is Not compromised as much !
AvagoodN !
Quote:
Originally Posted by dugnsuz
Hi,
The 70-200 f4L + Canon 1.4x extender is a combo I used to use for astro work a couple of years ago. It worked well in my opinion, but other combinations weren't as forgiving on the accompanying aberrations which are introduced. My 300mm f4L + extender never gave results as good as the 70-200 extender combo.
link to an old post with an Eta pic...
http://www.iceinspace.com.au/forum/s...ad.php?t=42671
Doug |
Cheers for your feedback Doug and a nice field in your Eta Capture, turned out very nice indeed ! Appreciate your thoughts on different combo's as well ! If it performs well on two or even three combos, then it would be a great addition to the Kit !
Eta is one target I had in mind actually, along with others, incuding Andromeda, 200mm just aint quite enough !
Thanx again !
I should try the ones in Cameras Direct out ? 'Try before you buy' could yield some more insight to there performance's !
Thanx again
