I have used this for several months with a 300mm 2.8 lens and a 70-200mm 2.8 lens. I photograph lots of birds in flight and have found little or no loss in sharpness of the image. I have to believe people who find problems with teleconverters may have other issues.
23 septembre 2011
I have used this for several months. It has performed beyond my expectations. I find little or no loss of clarity in my images. I use all three teleconverters on a 300mm 2.8 and a 70-200mm 2.8 and couldn't be happier with the versatility they provide.
19 août 2011
For what it is ,it does a good job
If you use the he TC1.7II properly it is a very good teleconverter. I use it with my 70-200mm f2.8 on my D90 which makes it equivalent to 200mm to 530mm lens.
For some the downsides are the lens is slower and the image not as sharp as when the teleconvertor is not used.I don't have $5K
for a 500mm lens and in most cases the image is acceptable with the teleconvertor.
To get best performance I shot my 70-200mm at a minimum of f5.6 or f 6.3 . If you set the lens to 180mm instead of 20mm the image is a little sharper. The TC1.4II gives a sharper image but less magnification. Remember to shoot at a minimum of 1/250 to 1/500 and you will get some great shots.
29 juillet 2011
Moon and Space Shots Made Easy
I've used the TC-17E II for my Motor Sports photography and loved it. Fast, sharp, clear shots on both Auto Focus and Manual.
Then one night I set up in the yard to do some "Space Exploration." Wow! With my 200mm lens on the D700 I got photos of the Moon that were great. I also found several galaxies that I knew were there, but couldn't see. The best shot was all the details in Orion. I could pick out the M42 and M43 galaxies, Betelgeuse, Bellatrix and Rigel along with all the other stars that make up the constellation. The details were wonderful!
17 juin 2011
Got a 70-200 mm f.2.8 zoom objective and wanted to get just a bit closer. I saw another review where it was mentioned "it works well for what it is" and that reflects my experience as well.
Cannot see any difference in sharpness, but one thing I noticed when I wanted to see how my 70-200mm f.2.8 did without because I had seen a few comments then I immediately put the Teleconverter back in. The zoom with it has simply become a "cant live without".
So thumbs up for it.
27 août 2011