@135mm test

[monyat]

Just for fun, I attempted a simple test of 3 lens to test sharpness and bokeh at the 135mm focal range. Here goes my findings.

Original photo


135mm f2.8 prime @ f2.8 (Cropped)


135mm f2.8 prime @ f4.5 (Cropped)


28-135mm zoom @ f4.5 (Cropped)


Beercan 70-210 @f4.5


Bokeh-wise, the 135mm@f2.8 is of course the nicest being the most wide open. At f4.5 for this test however, I cannot seem to find big differences between the 3 lens.

Sharpness wise, as shown above, the 135mm @f4.5 is the sharpest, followed by 135mm @f2.8, beercan @f4.5, and worst is 28-135mm@f4.5.

Focusing distance-wise, the 135mm and beercan can focus closer (alomost same distance) than the 28-135mm zoom.

Please feel free to comment on the results or inaccuracies of the test if any. More photos in my Flickr site.

[zcf]

seem like Minolta 28-135mm at 135mm is not really 135mm when doing close focus. Good to see you make good use of this lens .

[monyat]

The 28-135mm has a relatively longer minimum focusing distance as compared to the other 2 lens. Though it fared the worse in this test, it is still a very good lens, versatile for general outdoor street shoots.

135mm prime is a very good lens to have, sharp and nice bokeh...

[Rashkae]

The beercan fared very well...

[zcf]

Originally Posted by monyat The 28-135mm has a relatively longer minimum focusing distance as compared to the other 2 lens. Though it fared the worse in this test, it is still a very good lens, versatile for general outdoor street shoots. 135mm prime is a very good lens to have, sharp and nice bokeh...

I see, so the 28-135mm battery photo look smaller is due to the different shooting distance, not because of it's actually not as long while in close focus.