Thursday, July 16, 2009

Round 1: Canon 100-400mm @ 100mm vs. Canon 100mm 2.0

Canon 450D at ISO 200, two lenses were tested again each others namely:

1. Canon 100-400mm f4.5-5.6L USM
2. Canon 100mm f2.0 USM

So here are the testing shots at f/4.5:-

Prime at f/4.5 resized:-

Zoom at f/4.5 resized:-

Prime at f/4.5 center cropped:-

Prime at f/4.5 border cropped:-

Zoom at f/4.5 center cropped:-

Zoom at f/4.5 border cropped:-

And then the test shots at f/8:-

Zoom at f/8 resized:-

Prime at f/8 resized:-

Zoom at f/8, center cropped:-

Zoom at f/8, border cropped:-

Prime at f/8, center cropped:-

Prime at f/8, border cropped:-

Finally, prime at f/2:-

Center cropped:-

Border cropped:-


The 100mm f2.0 is recommended for astrophotography in a number of website, I guess that I have to stop it down to f2.5 or slower and considering the price and versatility, it's unbeatable.

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