glasslover
Joined: 17 May 2011 Posts: 143 Location: San Francisco Bay Area, CA, USA
Expire: 2013-10-19
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Posted: Thu Sep 20, 2012 4:23 am Post subject: Test shots for Olympus OM 35-70 3.5-4.5 |
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glasslover wrote:
Hi!
I took a bunch of test shots with the Olympus OM 35-70 3.5-4.5 using an Olympus OM-D E-M5. This is basically a shot-matrix of these apertures [3.5, 5.6, 8, 11] crossed with these focal lengths [35, 42, 50, 60, 70]. I refocused for each shot, and noticed that this lens really does need to be refocused when you change focal length. It isn't as bad as a vari-focal, but it surely isn't par-focal either.
The last two shots test the close-focus capability of the lens, which is pretty good, especially for such a small and light lens as this is.
I had heard here and elsewhere that this lens had good image quality, with very small size and light weight. I'd say the image quality is pretty good, though by no means superlative. It is indeed a wonder of small size and light weight (62mm x 51mm at maximum extension, 190g). For comparison, it's only 50g heavier than the (very small) Konica Hexanon AR 40 1.8 pancake lens, and 75g lighter than the very reasonably-sized Konica Hexanon AR 50 1.4. Tamron model 09A, also 35-70 and 3.5-4.5, which has similar optical performance, weighs more than 50% more than this Olympus, at 322g.
Focus is on the small window in the center of the photo. All shots taken at ISO 200 on an Olympus OM-D E-M5. These shots are raw out of the camera, resized and jpeg converted with LR4. No other changes:
35mm, set to f3.5, 1/800s
42mm, set to f3.5, 1/640s
50mm, set to f3.5, 1/400s
60mm, set to f3.5, 1/400s
70mm, set to f3.5, 1/320s
35mm, f5.6, 1/320s
42mm, f5.6, 1/320s
50mm, f5.6, 1/250s
60mm, f5.6, 1/250s
70mm, f5.6, 1/250s
35mm, f8, 1/160s
42mm, f8, 1/160s
50mm, f8, 1/125s
60mm, f8, 1/160s
70mm, f8, 1/125s
35mm, f11, 1/100s
42mm, f11, 1/125s
50mm, f11, 1/125s
60mm, f11, 1/100s
70mm, f11, 1/125s
70mm, f8, 1/100s, ISO 800 (pixel peepers can click here for HUGE full-size version)
70mm, f11, 1/125s, ISO 1600 (pixel peepers can click here for HUGE full-size version)
Cheers! _________________ --Glasslover
I have a panasonic gh2 and olympus om-d e-m5 (both m43) and use mf lenses of many types |
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