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On recieving my Bower 500mm f8 mirror lens I did a quck comparison with my Sigma 70-200mm f2.8 and the mirror lens came a poor second best. The day was overcast and the lighting flat. The Bower showed a distinct vignetting and the image was really lacking in contrast.
Did not fit the camera
For the price; it's ok. The image is acceptable but not brilliant. Given the fixed aperture; there is no adjustment you can do with regard to depth of field etc. and as it is a manual lens; you have to rely on the camera's focus assistance to determin the accurate focus is reached.
The lens is fun to play with. The build quality is good. However, the images produced with this lens are very low contrast with washed out colors, and vignette is too pronounced for my taste. The lens is also simply not sharp at any distance.
Must have good light. You can't beat the price!
I bought one of these Bower 500mm f/8.0 lenses and I wish that I had saved my money for a better lens. This lens is a mass produced piece of junk that does not let in enough light to allow you to take decent quality photos and using a 2.0 X teleconverter with it only lessens the amount of light...
Work well with my Nikon D80. It is very light, usefull when travelling.
Great product, enjoying it on my camera and taking awesome photos Thanks a million.
Easy focus, Clear look at the target,
I just tested this new baby out, it's super light for a tele lens. I've already get info from internet about pro-cons of mirror lens and they are true, so it doesn't surprise me about the slightly less contras, doughnut bokeh - which is for me is a plus/uniqueness.