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Thread: Olympus E-420 full-size test shots

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    Default Olympus E-420 full-size test shots

    DCWatch has its usual set of full-size test photos taken with the E-420 and 25mm f2.8 pancake lens.

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    Default Re: E-420 full-size test shots

    The shots of the brick wall at 25mm (prime?) show a lot of pincushion distortion. This is kind of odd in a prime 'normal' lens.

    Clay

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    Default Re: E-420 full-size test shots

    Quote Originally Posted by cstirlingbartholomew View Post
    The shots of the brick wall at 25mm (prime?) show a lot of pincushion distortion. This is kind of odd in a prime 'normal' lens.

    Clay
    Barrel distortion on my monitor. Even so, I agree a prime should not show that level of distortion.

    Peter

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    Default Re: E-420 full-size test shots

    I didn't think lenses did this type of thing at various apertures. If not, I'd almost think the wall was rounded and the photog didn't know or is playing tricks...

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    Default Re: E-420 full-size test shots

    Quote Originally Posted by refiningman View Post
    Barrel distortion on my monitor.

    Peter
    Your right, my error.

    Clay

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    Default Re: E-420 full-size test shots

    I'm glad I'm one of the unwashed masses of distortion-neutral shooters.

    The same brick wall shot seems to show a lot of falloff in the bottom right (well, top right in this portrait shot), regardless of aperture. Much more than the falloff in the other corners wide open, and it remains at f/5.6. Hopefully that's just the shot, and not a sign of potential trouble.

    It handles the point light sources in the lantern shots extremely well. Not a ghost to be found, and no flare whatsoever... just a nice soft glow. An outstanding performance!

    It's tough to judge sharpness from these photos. None look particularly sharp, but the lighting looks poor in most of the closeups, which would kill sharpness. I'll definitely reserve judgment on sharpness until I get mine and have the chance to put it in a shootoff against my 5D and OM 50/1.8.

    These tests only make delivery day seem further away! Argh!
    Chris


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    Default Re: E-420 full-size test shots

    Certainly seems sharper than my 14-45...

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    Default Re: E-420 full-size test shots

    The also have some E420/25mm shots over at Four Thirds User:

    http://fourthirds-user.com/2008/03/i...ke_samples.php

    I did not notice any distortion, but note the CA especially on the windows in the shot of the antique shop.

    Peter

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    Default Re: E-420 full-size test shots

    Most of the shots look pretty good. I agree about the antique shop shot, however. There's a decent amount of CA to be found anywhere but dead center in the frame... and with the benefit of stopping down to f/4. The extreme edges (check the security box on the left edge) have it bad enough that it might be noticeable in an 8x10, while the rest of the frame (check the price tags in the bottom third of the frame) shouldn't be problematic except at 11x14 or larger.

    Not unexpected from this kind of lens; shrink a lens down and the corners are the first to go. I just wish the lens sacrificed a bit of sharpness instead of showing CA. Non-uniform CA like this is tough to fix without Photoshop.
    Chris


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