Olympus 9mm f/8 Fisheye Lens Cap - Review / Lens Test Report - Sample Images & Verdict
Lens Reviews - (Micro-)Four-Thirds

Sample Images & Verdict

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Make Panasonic
Model DMC-GM1
ISO Speed 200
Focal Length
Aperture: f/
Exposure 1/320s
Make Panasonic
Model DMC-GM1
ISO Speed 400
Focal Length
Aperture: f/
Exposure 1/640s
Make Panasonic
Model DMC-GM1
ISO Speed 200
Focal Length
Aperture: f/
Exposure 1/320s
Make Panasonic
Model DMC-GM1
ISO Speed 200
Focal Length
Aperture: f/
Exposure 1/640s
Make Panasonic
Model DMC-GM1
ISO Speed 200
Focal Length
Aperture: f/
Exposure 1/200s
Make Panasonic
Model DMC-GM1
ISO Speed 200
Focal Length
Aperture: f/
Exposure 1/640s

Verdict

A formal test of the Olympus 9mm f/8 Fisheye Lens Cap is a bit unfair, of course. After all Olympus doesn't even list it in the range of lenses on their website - it's merely mentioned as a camera accessory thus also the "Lens Cap" name. However, it does take pictures and, honestly, it isn't quite a bad as you might think. The center performance is actually pretty decent. The borders are Okayish whereas the corners are very soft. Lateral CAs are significant but not terrible either. There's some vignetting but honestly this isn't anything you'd complain about in a fisheye lens. Compared to conventional lenses, the contrast is somewhat reduced especially in the corners. However, on the positive side it is pretty resistant against flare which is rather surprising.

Despite being an Olympus 'lens', it actually shares a couple of characteristics with caps in that it has no electronics. It doesn't offer AF nor is it capable of producing EXIF data and it has a fixed aperture. Using the focus lever isn't a joyful experience but it works out once you got used to it. The build quality is acceptable although the focus lever doesn't feel overly solid.

The optical performance may all not sound overly impressive but you have to keep in mind that while sheer resolution capabilities are important, fisheye images come to life because of their extreme perspective. Please note that it is still not a complete replacement of a "real" fisheye lens though. Other than a different level of quality, conventional fisheyes offer a bigger angle-of-view (180 vs 140 degrees) and a much faster max. aperture ... but these extras will cost you at least 300EUR/US$ (e.g. Samyang 7.5mm f/3.5 Fisheye) instead of just a 100. And what are a hundred bucks compared to the fun this lens (cap) can give you ?

Optical Quality: 1.5 Star Rating: Poor
Mechanical Quality:
Price/Performance:
      
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