Photoclubalpha

Hey David Just thought I would say thanks, after my lens sagas I took your advice and one of the new lenses I purchased was the Tamron 75-300mm. I have not spent too much time playing with it, but so far, makes the Sony 18-250mm look second rate....which it certainly is ! Also purchased the Tamron 1...

Thanks David Just finished some testing with interesting results. What I did was shoot a couple of A3 pieces of white pages as follows: - I tested at 28mm, 50mm, 100mm and 200mm focal lengths - EV as 0 for every test - Adjusted f-stop from lowest, f/3.5 - f/20 Results: - vignetting reproduced in eve...

Thank you David Definately no filter or lens hood and more concerning for me was the focal length as both of those fotos were at approx 28mm. I went through a series of fotos I took in Las Vegas recently with the a100 and the 18-250mm lens and there is some extremely minor, as in most people would n...

Thanks for the reply David as this is sending me crazy. Looking at a few of the fotos, they are at F4 however I do see it at 5.6 also. The strange thing is I was using this lens for about 3 months on an A100 and I do not recall seeing this at all which has been worrying me that its related to the A7...

Hi there Am new to the forum and would have liked my first post to be a little different.... I picked up my A700 2 weeks ago now and there appears to be a very serious vignetting problem with the 18-250mm lens when at 250mm or there abouts. I have been scanning the web however I dont see too many pr...