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Reviews (1)
Dec 04, 2017
No stops lost, no vignetting.
Great value. Quite heavy, but well-balanced when attached to my a6300/55-210mm equipment and you need this much glass to fulfill these two wishes:
- No light loss, same stops as without this tele extender.
- No vignetting.
The resulting sharpness is good but could still be better. I determined this by taking shots with a tripod and delayed shutter, then compared photos with and without this tele extender. At the same size on the screen, the ones with extender should show nearly twice the detail at 1.7X magnification, right? Not quite. Exact measurements later- this is just my first impression. In any case, I managed to take satisfactory shots of eagles in flight at 1/1500s to 1/4000s shutter speed and about 800-2000 ISO on a cloudy day. Works for me!