My Canon glass isn't so hot on the 1Ds Mk. III...

Started Feb 2, 2013 | Discussions thread
Sovern Contributing Member • Posts: 907
Re: My Canon glass isn't so hot on the 1Ds Mk. III...

CanonKen wrote:

I have used a 30D for years (well, since it came out, so 6 years I guess). I built up a few lenses since then:

35mm f/2, 85mm f/1.8, 17-40mm f/4L, 70-200mm f/4L (non-IS). They all work great on this camera and I fully trust the camera and lenses under any use (wide open, hard lighting conditions, etc.)

Overall, not at all thrilled with what I see on a FF body.

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The 35mm is pathetic and miserable wide open, but EXCELLENT at f/8-11.

--The 85mm is so-so wide open but EXCELLENT at f/8-11.

--The 17-40mm is decent, probably fine for landscapes and such (corners get soft/distorted). Not good wide open, but for a landscape lens, not a concern.

--The 70-200 is great at 70mm, but not as good at 200mm (some slight softness on one side). Not so hot wide open.

Overall, all 4 lenses can look great, but I have to really stop them down to get something that can make use of the camera.

My question is about expectations. On a high-MP FF body, what should I expect from these lenses? All 4 worked great on my APS-C body, but on FF, the outer areas quickly degrade to a point they look bad on even an modest sized print. Do I have bad copies, or is this normal for lower-tier glass on a flagship FF camera?

Do I see a 24-70 & 70-200 f/2.8 in my future?

Personally I'd only go full frame if you can afford L primes or L zooms.

All of the mid range primes and zooms (such as 17-55 2.8 and 85 1.8) are all excellent on crop wide open and in general but once you use the mid range primes or zooms on FF they show their weaknesses.

So personally I'd get the two best zooms available which are the Canon 24-70L2.8 II and the Canon 70-200 2.8L IS II or L primes before going FF.

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