Olympus · Olympus OM · From the early 1970s
The 100mm f/2.8 arrived with the early OM system and stayed in the line with its five elements in five groups unchanged all along. It's 48 mm long, weighs about 230 g and takes 49 mm filters, so it's barely bigger than a standard lens. Early copies read E.Zuiko Auto-T, E for five elements, and some have a silver-chrome filter ring, the silver nose. Later copies are all black and may carry an MC mark. Coatings are the main difference between versions, and it isn't always clear which E.Zuikos are multicoated, so look at the coating reflections as well as the label. It focuses to 1 m. On a full-frame mirrorless body it's a compact portrait lens. On APS-C it frames like a 150mm, and on Micro Four Thirds like a 200mm. Don't confuse it with the 100mm f/2, a much bigger lens from the mid-1980s with ED glass and a 55 mm thread.
On a mirrorless camera
It’s a Olympus OM lens, and its mount sits 46 mm from the film. Every mirrorless mount below sits closer than that, so a plain adapter ring fills the gap and the lens still focuses to infinity. On a smaller sensor it frames tighter, like a longer lens.
Versions
Early copies read E.Zuiko Auto-T, and some have a silver-chrome filter ring. Later ones are all black, read Zuiko Auto-T, and may carry an MC mark. The optics never changed, only coatings and cosmetics. The 100mm f/2 is a different, much heavier lens with ED glass and a 55 mm thread.
The usual age faults apply, mainly haze, fungus and oil on the aperture blades. All five elements are air-spaced, so balsam separation isn't a concern.
New to old glass? How to check a used vintage lens covers haze, fungus and the rest in detail.
Buying guide
We'd buy the E.Zuiko a Japan dealer titles tested and grades Exc, at $160 delivered with free shipping, under the band, or the US dealer's E.Zuiko at $94 delivered after asking for photos. There are at least 46 for sale and most ask $180–290 delivered, mostly from Japan dealers, while US sellers ask $94–219, the top one a late Zuiko with a leather case and UV filter. Early copies read E.Zuiko Auto-T and some have a silver-chrome filter ring, later ones are all black and may say MC, and only the coatings and cosmetics changed, so buy on condition. All five elements are air-spaced, so ask for a flashlight photo through the back for haze and fungus and one of the blades at f/8, and skip the $393 bare-titled copy at about 1.6 times the median. It needs an Olympus OM adapter, and the model page lists the adapters by camera.
$93.89delivered
The lowest delivered lens here, an E.Zuiko at $94 with free shipping from a 99.8% US dealer, $86 under the band. The title makes no condition claim, so ask for a flashlight photo through the back and one of the blades at f/8.
Olympus OM 100mm f2.8 E.Zuiko Auto T Lens #153
![[Exc] OLYMPUS E.ZUIKO AUTO-T 100mm F2.8 MF Lens OM Mount Tested From JAPAN](https://i.ebayimg.com/images/g/LloAAeSw2lNqr-yG/s-l500.jpg)
$159.99delivered
An E.Zuiko titled tested and graded Exc, at $160 delivered with free shipping from a 100% Japan dealer, $20 under the band. Ask what the test covered.
[Exc] OLYMPUS E.ZUIKO AUTO-T 100mm F2.8 MF Lens OM Mount Tested From JAPAN
Delivered prices include shipping as eBay quoted it to a US address on Oct 14, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Snapshot
Checked . Some may have sold.
Delivered prices include shipping as eBay quoted it to a US address on Oct 14, 2026. Many sellers charge by distance, so your total may differ. eBay shows yours before you pay.
Used$93.89delivered
$93.89 · free shipping
Buy It Now$93.89
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Good buy
US dealer, free shipping. E.Zuiko, no condition claim in the title.
Seller: robertscamera
99.8% positive
Used$159.99delivered
$159.99 · free shipping
Buy It Now$159.99
Good buy
E.Zuiko titled tested, Exc by the dealer's grade. Free shipping.
Seller: nom-4907
100% positive
Used$184.99est. delivered
$169.00 + $15.99 shipping
Buy It Now$169.00
Our take
US dealer. No version or condition in the title.
Seller: concourse
99.3% positive
![[Near MINT] Olympus OM-SYSTEM E.Zuiko AUTO-T 100mm f/2.8 MF Lens From JAPAN](https://i.ebayimg.com/images/g/YygAAeSwpCRqpNp4/s-l500.jpg)
Used$189.99est. delivered
$169.99 + $20.00 shipping
Buy It Now$169.99
Our take
Silver-nose E.Zuiko in the photo, Near MINT by the dealer's grade. Caps in the photo.
Seller: riceball_90
100% positive
Used$219.00delivered
$219.00 · free shipping
Buy It Now$219.00
Our take
US seller, free shipping. Late Zuiko titled with a leather case and UV filter.
Seller: rbism
100% positive
Used$243.57delivered
$243.57 · free shipping
Buy It Now$243.57
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Our take
Later Zuiko titled no functional issues. Free shipping.
Seller: bears2636
99.3% positive
![[ MINT in Box / w case ] Olympus OM-SYSTEM E.Zuiko Auto T 100mm f/2.8 From JAPAN](https://i.ebayimg.com/images/g/poAAAeSwqGdo-LAi/s-l500.jpg)
Used$339.99est. delivered
$279.99 + $60.00 shipping
Buy It Now$279.99
Our take
MINT by the dealer's grade, with the box and case in the photo.
Seller: st.auto-86
100% positive
Used$393.47delivered
$393.47 · free shipping
Buy It Now$393.47
This seller takes offers, and many sellers accept less than the asking price.
Fine if you might miss it? Send an offer first. Someone else can still buy it while you wait for a reply.
Want it for sure? Use Buy It Now.
Priced high
About 1.6 times the median, with a bare title.
Seller: bears2636
99.3% positive
Prices change daily. The live eBay search shows everything listed now, including anything new since Oct 14, 2026.
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