Andy, I have answered several questions regarding this lens lately...I copy below my first contribution that was the longer...please feel free to ask if you need more information.
Regards, Jaume -----posted on 13-11-2003 I recently purchased a 'like new' 28-105/3.2-4.5 to replace my 28-70/4, made a home test comparing the 2 lenses and wanted to share the results with the list, but I felt that this was of little interest given the present 'digital fever' and that this is not a particularly interesting lens for APS size sensors. But since Kostas' question, I recover what I was planning to say: I have to say that I was happy with the 28-70 buy I found it too short, mainly in the long end. The 28-105 power zoom has a good reputation, but it seems that it is bulky and I am in the side of those who prefer lightweight equipment, so the 28-105/3,2-4,5 was my price/quality choice (24-90 was also an option but it is pricey and I like my A24/2,8). My tests are maybe too simple, but they have proved quit consistent showing that primes are sharper than zooms, so this time I wanted to know if I was going to loose sharpness with my new purchase�(glub!). I simply shoot the same scene with different lenses at different apertures (using a tripod). Then I scan the negatives and compare them side by side. 28-105 vs. 28-70: I have tested them at 28, 35, 50 and 70mm, and at 4, 5.6, 8 and 11, and the 28-105 is clearly better than the 28-70. Color rendition is similar, but the 28-105 is sharper. The difference increases at wider apertures and the 28-105 at 3.2 is better than 28-70 at 4�. (ufffff) Both show barrel distortion at 28, although it is difficult to appreciate which is worst. 28-105 vs. A50/1.4: prime is better, no surprise. 28-105 vs. A70-210 at 70mm: difficult to tell but I would say that the A zoom is slightly sharper. --- Andy Chang <[EMAIL PROTECTED]> wrote: > Hi guys, > > Anybody had any experience with this lens before? > Stan's web site only has > limited info on it. __________________________________ Do you Yahoo!? Yahoo! Mail SpamGuard - Read only the mail you want. http://antispam.yahoo.com/tools
