Canon 2xTC Help

Bodley

Let me start off by by saying I've read that the 2xTC was not too good on the 70-200/2.8 L and better on quality primes. Well I bought it anyway and am using it on the 70-200. Covering the entire field from the dugout is difficult without a zoom.

For those that have one - is it normal for the viewfinder to be somewhat grainy? Also stacked it with the 1.4xTC and the viewfinder was VERY grainy.

Here are a couple of shots with the Canon 2xTC on the Canon 70-200mm/f2.8 L IS (going to try it later on my 200mm/f1.8)

Bob Bell

The 2x isnt horrible, its just not on the same par as the 1.4x in my opinion.

There is a texture that shows up with TC's in the viewfinder. I am not sure optically why that happens. It looks like the matte texture of the focus screen. Either way I've never seen an impact on the image. The texture shows up on Tamron TC's as well. I have noticed that it shows up more when the max aperture gets slower.

Really nice timing on that 1st shot

tmlphoto

I believe the grainy look is a result of the loss of light due to the converter. It should look the same if you use the DOF preview button with the aperture closed down some. Should not effect image. These shots looks pretty good to me with the 2x. Not every image has to be razor sharp to be a good shot. I think we worry too much about such stuff. Most parents would never notice.

Steve Cavigliano

Greg,
As Bob and Thomas point out, I think this is normal. I hope it is, since I see it too when using a TC on my 70-200 F2.8. I don't notice it (or maybe it is less noticeable) using the TC with my 400 F5.6

I do however, see odd bokeh using TCs. It is grainier/crispier and reminds me more of a P&S result than "smooth" Dslr bokeh. Matter of fact, I can see the same "effect" in your small images above.

Steve

Bodley

I wasn't too dissapointed with the 2xTC on the 70-200/f2.8.

Here's a shot with the 1.4x & 2x stacked on the 200mm/f1.8 (the metadata say's 400mm but it should be 560mm plus 1.3x crop for 728mm)