This product shot above is crappy because I didn't have much time to do it, and probably nobody really cares anyways. You can see the older beercan is much larger than the newer variable aperture lens, mostly due to the zoom being internal in the beercan. The newer lens has a focus hold button which would've been nice on the beercan, but oh well. I like the rubber grip and finish of the newer lens much better than Minolta first generation AF lenses, like the beercan. Distortion. Minolta AF 70-210mm F/3.5-4.5  Minolta AF 70-210mm F/4 below Distortion is nearly the same overall between the lenses, but the beercan has a little more barrel distortion at 70mm. Pincushion appears stronger on the newer model, but really isn't. The illusion is probably due to the fact that I don't have the crops lined up exactly the same. Check out the center crops below. Minolta AF 70-210mm F/4 @70mm Minolta AF 70-210mm F/3.5-4.5 @70mm F/4 F/3.5 F/5.6 F/5.6 F/8 F/8 F/11 F/11 Both lenses are a little soft in the 70mm centers wide open, but sharpen up nicely at F/5.6. The beercan looks slightly sharper around F/8. I see moiré in the stamp product code lines on the F/8-11 beercan crops, but not the newer model, that indicates a little better sharpness for the beercan. Contrast looks slightly better at all apertures on the beercan also. Now for some mid-level crops. Minolta AF 70-210mm F/4 @70mm Minolta AF 70-210mm F/3.5-4.5 @70mm F/4 F/3.5 F/5.6 F/5.6 F/8 F/8 F/11 F/11 I think these crops tell all about the quality of the newer model on the short end, and away from the centers. This is the same area as the APS-C corners would be. The newer model is awful outside the central area at 70mm, but does get better at F/16-22, but then diffraction messes up the centers, so there's no point right? Also, try shooting at F/22 in less than ideal light, and you'll have a blurred mess from shutter speeds that are too slow. Corner crops next. Minolta AF 70-210mm F/4 @70mm Minolta AF 70-210mm F/3.5-4.5 @70mm F/4 F/3.5 F/5.6 F/5.6 F/8 F/8 F/11 F/11 We see the same thing here in the extreme corner crops as we do above, fortunately, things change as we zoom in! Now for some 210mm center crops. Minolta AF 70-210mm F/4 @210mm Minolta AF 70-210mm F/3.5-4.5 @210mm F/4 F/4.5 F/5.6 F/5.6 F/8 F/8 F/11 F/11 The full zoom center crops look about the same on each lens, and contrast has noticeably picked up on the newer model at 210mm, as compared to the 70mm crops. Mid-level crops below. Minolta AF 70-210mm F/4 @210mm Minolta AF 70-210mm F/3.5-4.5 @210mm F/4 F/4.5 F/5.6 F/5.6 F/8 F/8 F/11 F/11 The newer model looks sharper in the mid-level areas, or APS-C corners, especially at larger apertures like F/4.5-5.6. The crops here are exposed -2/3 eV from the 70mm crops, but both crops have the same exposure values, I just ramped up the exposure on the second set (which was the 70mm crops) because the 210mm corner crops were too dark in my opinion, and also, I didn't want to redo the entire first set!! Corner crops next. Minolta AF 70-210mm F/4 @210mm Minolta AF 70-210mm F/3.5-4.5 @210mm F/4 F/4.5 F/5.6 F/5.6 F/8 F/8 F/11 F/11 The extreme corners are dull, and look about the same on each lens, which is odd. I'd give the edge to the newer model though. I also see the color fringing is about the same too. |
