Olympus 9mm f/8 Fish-Eye Body Cap : Specifications and Opinions

Olympus 9mm f/8 Fish-Eye Body Cap

The Olympus 9mm f/8 Fish-Eye Body Cap is a fisheye lens for 4/3, manufactured from 2014. The focus is done by Manual Focus, it does not have image stabilization. The average price, when it has been added to the JuzaPhoto database, is 72 €;

56 users have given it an average vote of 8.4 out of 10.

MOUNT

This lens is available with the following mounts:

Micro 4/3: this lens is compatible with mirrorless micro-4/3.

Specifications
Focal lenght	9 mm
Angle of view	180° (equivalent to a 18mm in Fullframe 24x36mm format)
Format	4/3
Max. aperture	f/8
Aperture blades
Lenses/Groups	5 elements in 4 groups
Min. focus distance	0.20 meters
Reproduction ratio	0.04x
Features
Stabilization	No
Focus	Manual Focus
Internal Focus	No
Built and notes
Tripod ring	No
Extenders	No
Filters
Lens hood	No
Weather sealing	No
Weight	30 g
Dimensions	56 x 13 mm
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Reviews

What do you think?

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The following opinions have been automatically translated with Google Translate.

Jacopo Pasqualotto

sent on 27 Dicembre 2025

Pros: Light, small, fun, close maf

Cons: None

Opinion: It's the ultimate in fun: combined with an Olympus with a tilting screen, it allows you to take photos from crazy angles and points of view that are unthinkable even for a smartphone; on my E-M1 allowed me to get cool images from ground level or from above inside historic buildings that others could only dream of. Who cares about optical perfection or the closed diaphragm, with the magic lever of the maf you can focus even at 20 cm, about 30 meters in the intermediate position or up to the moon in the infinity mark; A must-have lens to have to have fun with 100% creative compositions! Just think: every museum room on the planet will be yours in its entirety with just one click and all - and I mean all - the holiday beach complete with wife and children, hotel, sea, cliff, pier and sunset sky with sun and clouds up to the horizon + plane passing by with its wake, yours with a single, unique amazing sensor exposure !! To be bought with your eyes closed.

Innerlight

sent on 05 Luglio 2025

Pros: Ridiculously low price. Hyper-compact and lightweight: it weighs only 30g. Good sharpness in the center. Creative fisheye effect (140°). Simple design with manual focus lever.

Cons: It is a stopper, not a goal. Fixed aperture f/8. Manual focus. Soft edges. Chromatic aberrations visible in high-contrast scenes. Not suitable for professional photography.

Opinion: The Olympus 9mm f/8 Fisheye Body Cap Lens is a cap, not really a lens. It is ultra-compact and lightweight (30g) designed for Micro Four Thirds cameras, with an affordable price (about €85-90). It offers a 140-degree angle of view, ideal for creative fisheye effects, but is limited by a fixed f/8 aperture and manual focus. It's more of a fun and portable accessory than a high-performance lens, perfect for amateur photographers who want to experiment with exaggerated perspectives without breaking the bank. Get it if: You would like to get a fish eye, but you don't know if you will use it or think you will be bored. It's an affordable and fun option for those who want to explore fisheye photography without professional expectations. Its portability and price make it an attractive addition for amateur photographers, but the technical limitations relegate it to creative and occasional use.

Danielebnd

sent on 18 Gennaio 2025

Pros: Negligible price, minimum size

Cons: Not excellent quality, but it seems obvious to me

Opinion: It's probably the least expensive lens on the market, so you can't fault it that much. A fun toy, with a few euros you can take home a usable wide-angle lens. The best feature is the zero footprint and minimal weight, you carry the camera around as if it were a smartphone, even in the pocket of your jacket. For this, it is really convenient.

Zanini_Davide

sent on 07 Novembre 2024

Pros: Compactness, weight, cost

Cons: no focus, plastic, fixed aperture

Opinion: Well, for the price it has in my opinion you can't expect more. He knows how to do his dirty work and even well. Surely we need a minimum of post-production to bring out the best. The only drawback in my opinion, in addition to the fact that it is entirely plastic, is that it does not have the ability to focus and change the diaphragm. For the rest nothing to say, I really enjoy using it

GioVau

sent on 30 Maggio 2024

Pros: Maybe the cost

Cons: Apetura. Dimensions. Quality. But it's all well known. Olympus calls it a "stopper."

Opinion: At such a low cost, what can you expect? Little. On the other hand, it is not even called as a lens, but as a cap. The size is tiny, as is the weight, but it is so small that it disappears even in the smallest bodies. The quality is absolutely comparable to the cost, low because it is low. But it is all known at the time of purchase and this is the only merit that can be attributed. A value that is not entirely obvious.

There are 20 more reviews. Show all »

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Olympus 9mm f/8 Fish-Eye Body Cap : Specifications and Opinions

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Reviews

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Photos taken with Olympus 9mm f/8 Fish-Eye Body Cap