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LENS PORN: Olympus OM-System Zuiko Auto-Zoom 75-150mm f/4 (Converted to Nikon Mount)

Olympus Zuiko 75-150mm f/4 (Nikon mount)
Olympus Zuiko 75-150mm f/4 (Nikon mount)



The Olympus OM-System Zuiko Auto-Zoom 75-150mm f/4 is a telephoto zoom lens with constant maximum aperture, and was the first ever zoom lens of Olympus dating back to 1974. I have read that there is an early and later version of this lens. The one I have here is an early version (pre-1983).

There was a way to identify which lenses were made before/after 1983. Those made before 1983 were identified by an alpha-numeric code hidden under the rubber grip of the focus ring (you have to remove it). So when I saw a 'G03' on my lens, I knew this was the early version.

G = factory where lens was made
0 = year it was made, in this case 1980
3 = month it was made, in this case March



This 75-150mm only has a 2x zoom ratio, which makes it lightweight and compact. Smaller zoom ratio is also preferred over superzooms because there is less compromise in image quality and you consistently get sharp images across the whole range and even wide at f/4. A 70-200mm zoom is too big, too heavy for me and I gladly gave it up for these 2x zoom lenses. Besides, I often find myself zooming toward 135mm max on my D5200 (1.5x crop factor).

The advantage of having a lens with constant maximum aperture of f/4 across the whole range is that you get wide aperture at the longer end, and it's also easier to calculate your exposure manually. This lens is 'parfocal', meaning the focus remains constant while zooming in/out.

Bokeh-wise, it's already very capable of producing pleasing blurry backgrounds at 75mm f/4, and it's already sharp here. At 150mm, you can still get blurry backgrounds at f/8.

I love how this lens renders images (the same with my other Olympus lens, the 50/1.8). It gives you crispy and sharp images at the widest aperture of f/4, yet it also looks delicate and not overly sharp that you can see every pore on your skin. Colors are neutral, not too cool or too warm. And oh, having 8 aperture blades is really nice, it should be the minimum number on any lens so that you can get beautifully round bokeh bubbles when you stop down (many lenses give that ugly hexagonal bubble).

Conclusion: The Olympus Zuiko 75-150/4 is a lightweight zoom lens with constant maximum aperture that you will love to use as a portrait lens on crop sensor cameras, but also suitable for other applications. Handling is nice, it's a parfocal zoom. The image quality is also very pleasing. Sure, it's only limited to a 2x zoom, but I'd gladly give up my heavy zooms for this one any day!



Here's a followup video shot from LRT Gil Puyat station. I had no plan to shoot video that day and didn't bring tripod. The train was already coming, so I rushed this video.

July 22, 2017 This is a followup sample, I already uploaded my lens demo yesterday. I didn't bring a tripod today and had no plans to shoot video. The footage here was shot from LRT Gil Puyat station and the train was already coming. Thus the shaky I which I took in haste. This is an Olympus Zuiko75-150mm f/4 with mount converted to Nikon F. It was used on my Nikon D5200.
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SPECS

Olympus OM-System Zuiko Auto-Zoom
75-150mm f/4 (EARLY VERSION)

Year Introduced
1974

Focal Range:
FX = 75-150mm
DX = 108-225mm

Minimum Focusing Distance
1.6 meters at 150mm

Focus Throw
180 degrees (half circle turn)

Filter Thread Size
49mm

Aperture Run
f/4 - f/22 (8 blades)
Full-stop clicks

Other features
2 separate rings for focusing and zooming
Parfocal (focus does not change when zooming)
Rotating front element
Built-in retractable hood
Multicoated glass

Made in Japan

Olympus Zuiko 75-150mm f/4 (Nikon mount)














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Samples


Shot with my Nikon D5200
(1.5x crop factor)


Street scenes


Olympus Zuiko 75-150mm f/4 (Nikon mount)







Portraiture


Olympus Zuiko 75-150mm f/4 (Nikon mount)



Things


Olympus Zuiko 75-150mm f/4 (Nikon mount)




Bokeh comparison at 75mm, 100mm and 150mm


Olympus Zuiko 75-150mm f/4 (Nikon mount)


















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Links
How To Identify Early/Late Olympus Lenses






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The Nikon D5200 as my weapon of choice.

Vintage lenses are my poison.

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