| Latest Review Posted | Tamron Adaptall-2 SP Mirror (55BB) 500mm F8
I think I had a bad copy of this lens. Although it looked mint, it just wouldn't produce a sharp image.
I'm currently looking at getting an older Pentax 600mm mirror lens - costs double what this one cost.
I posted some images, here in the forum, comparing the SMC Pentax DA 1:4-5.8 55-300mm ED lens to the Tamron. I cropped images from the Pentax so that they were the same size as the images taken with the Tamron at its 500mm.
Here are some comments that users made when they compared the two lens.
"My judgement would be you're better off using the 55-300 in every case."
&
"I agree with the others that the cropped 55-300 images appear more detailed than the Tamron mirror"
&
"Your copy seems to be unusually soft."
So, the Pentax images taken at 300mm and cropped, to be the same size as images from the Tamron's 500mm, produced sharper and nicer looking images than the Tamron's 500mm images. This shouldn't have been the case, but it was.
The thread where I compared the two lens images is at:
https://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/437054-tamron-500mm-mirror-vs-pentax-55-300-telezoom-images-cropped-images-comparison.html |
