PDA

View Full Version : Extenders : how do they affect the image?


aeroshots2003
15th of February 2004 (Sun), 10:39
Hi all,

since I'm new on this forum, a small intro :
I've been active in aviation photography for quite some years and as time went by I managed to buy one thing after the other (cfr. equipment list below). As a result my camera bag - Lowepro Photo Trekker Classic - has become a real burden, especially since I have to haul it along all day long during a photoshoot. Sometimes I use the Omnipro bag instead of the backpack, since it's more accessible while walking around. The downside is that this bag is not big enough for all the equipment.

I'm considering to replace part of my equipment (75-300mm, 400mm and 70-200mm f/4) by Canon's Mother of all zooms : EF 70-200 f/2.8L IS USM and combining it with a 2X extender to have the same reach as I do now.

*** extender 2X ***
Could anybody comment on how much the use of this extender affects the quality of image? I'm afraid that this combination would result in unsharp and dark edges... How big is the difference between 2X and the new 2X II?

*** EF 17-40 f/4 vs EF 17-35 f/2.8 ***
On the wide angle side, I would like to replace the 20-35mm by one of the above. Any ideas why I should prefer and pay more for the 17-35mm?

I am considering moving to digital, yet the current 10D does not the required resolution I want. The new 1Ds MkII would be sufficient, yet the price tag is way beyond my budget. I'm waiting for a +8 Mio pixels DSLR within the $2.500 price range. Only then will I cross over (partially) from wet film. Currently I use 3 bodies, since I work with different types of slide film (50/100/400 ASA). A DSLR would make this far easier, since settings can be changed constantly.

Any advice is welcome.

Greetings,



Johan

CyberDyneSystems
15th of February 2004 (Sun), 12:35
:)

Answered here;

http://photography-on-the.net/forum/showthread.php?t=25278&highlight=