MFLenses

MFLenses 2026

Manual Focus Lenses

Explore the world of vintage lenses through repair notes, real test shots, and detailed forum threads packed with images.

Explore the world of vintage lenses through repair notes, real test shots, and detailed forum threads packed with images.

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Olympus OM 300m f/4.5 Lens Review

09/09/2006
Rare excellent lens, super sharp even at wide open to compare with much more expensive lenses hard to see any quality differences.Very well built as all Olympus OM lenses. It has tripod mount and built-in lens hood. I found viewfinder bit darker with this lens than with Nikon Nikkor 300mm f4.5 ED IF.Lens does not rotate during focusing which is good for using polarizers,almost half the weight of the current AF 300mm f4 from Canon and Nikon, but still not light weight than Nikkor 300mm f4.5 ED IF.Perfect choice for any Olympus or Canon owner works just fine with suitable adapters.The compact styling and superior performance makes this ZUlKO 300mm an ideal tele-lense for sports, wild life even when it is handheld. The lense has a larger filter attachment size which accepts any 72mm threaded filter and usable with Tele-converter1.4X-A.

Lens



Fact Sheet


Vendor name
Olympus
Type
OM
Product year
~1970

Focal Min(mm)
300
Focal Max(mm)
300
Focus Min(cm)
350

Aperture Max
4.5
Aperture Min.
32
Barrel length(mm)
181

Elements In Group
6 in 4
Diaphragm action
Auto
Weight (g)
1000

Filter Size (mm)
72
Push on diameter (mm)
80
Angular field
8

4 Comments

  1. (Shin) Yoshina, the nature photographer, … The photos of birds that made him famous were shot with his favorite Zuiko 300mm. It is said that he shot most of them with open aperture.”

    A magnificent super telephoto lens

  2. And the Minolta MD 300 4,5? Artaphot quite like the MD for its portability, quick IF and wide open performance, and so do I.

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