Well firstley I only have one lens to match this up with and it is my 300mm f2.8 usm is l lens. And they make a good combo. The lack of light works well in sunny conditions but in the dark it is not much to have. But regarding that you all know this I will not explain it further. It has really good image quality! It focuses quite fast on a 1 series canon body.View review in forums Leave a comment on this review
Canon Extender EF 2x II
Initially I rarely used the 2.0x because it was very soft on all my long lenses. Canon calibrated it along with my 300 f/2.8IS and the results are very sharp now. Best of all, MA is zero at all focus distances and apertures. The 300mmx2 is actually slightly sharper on my 5D MkI where it was unusable before lens calibration.View review in forums Leave a comment on this review
|Short-eared Owl by bryand7k|
from Best photo of the week...
|Happy girl! by Dutch Newchurch|
from Wide angle