opinion wanted on lens

rahenyguy · 12-08-2006 12:16am #1

new canon 350 d user looking for zoom lens seen this on ebay any advice or opinions would be great thanks
http://cgi.ebay.ie/420-800mm-Lens-for-Canon-EOS-30D-20D-5D-60D-350D-300D_W0QQitemZ190019386586QQihZ009QQcategoryZ30070QQrdZ1QQcmdZViewItem

Blazer · 12-08-2006 10:58pm

looks cheap as hell..i'd be a bit weary about putting on unknown brands on a canon 350d..wouldn't want to damage the mounting although there is a t-mount with it...aren't the canon/sigma ones as least €300?

rymus · 12-08-2006 11:18pm

it's an 800mm lens for £85. You get what you pay for. It might be good to get to mess around with like some folks get those cheap mirror lenses for... I doubt it'd be of any real use though.

SOL · 13-08-2006 10:22pm

The aperature is so poor and with 4 elements in 2 groups that it seems lika great waste if money. Also it is manual focus, if you have a 70-300mm lens you would be better buying a teleconverter, or even a 2 and a 1.4, and if you can find second hand manual ones they are cheaper than that lens and would yield far better results.

http://cgi.ebay.ie/Sigma-2x-EX-DG-APO-Teleconverter-for-Canon-NEW-9L_W0QQitemZ200016095342QQihZ010QQcategoryZ4687QQrdZ1QQcmdZViewItem if you are going to spend money, make it worthwhile, this isn;t a bad thing to own, you can use it on most lenses you will get far better quality even if you crop the photos to get the extra zoom...

halenger · 14-08-2006 11:08am

Be careful there though. The 70-300 is 5.6 on the long end. Your camera might not AF with a teleconverter on that, 5.6 is sort of an inbuilt limiter in some cameras. If I remember correctly the 70-300 is f/4 on that short end, that'd be f/5.6 with a 1.4x converter. You'd still be better off than the Opteka thing though. There's a good possibility that that won't even meter. Useless with those aperture values without a tripod and patience really.