By Ked · March 2026
March 2026
If you're shopping for a used Leica lens, vintage optic, or high-end glass on eBay, you've probably noticed listings that seem too good to be true. A Summilux 50mm for $900 when the going rate is $3,000? A Summicron 35mm for $800 when every other one is listed at $2,200?
These aren't lucky finds. They're scams. And they're getting more common.
At Used Lens Tracker, we aggregate thousands of used lens and camera listings every day from eBay and other major resellers. That volume gives us a unique vantage point to study pricing patterns across the market and spot the fraud that individual buyers might miss. Here's what we've learned.
The most common scam pattern we see follows a simple two-signal formula:
Brand-new seller account + price far below market value.
That's it. It's not sophisticated, but it doesn't need to be. The scammer creates a fresh eBay account with zero feedback, lists a desirable lens at a price that's 40-60% below what everyone else is asking, and waits for a buyer who assumes they've found a deal.
The buyer pays. Then one of two things occurs:
Either way, the scammer has already withdrawn the funds or moved them to another account. The eBay account gets banned, and a new one appears the next day.
This is the single biggest indicator. eBay shows every seller's feedback score (the total number of reviews they've received) right next to their username. A legitimate seller of a $2,000+ lens almost always has a track record. They've sold other items, built up reviews, and have skin in the game.
A seller with zero, one, or two feedback listing a high-value lens? That's a fresh account, and fresh accounts listing expensive glass are overwhelmingly fraudulent. A thin, single-digit feedback count isn't much harder to fake than zero. We've seen scammers pad an account with one or two throwaway purchases specifically to get past a "zero feedback" filter.
Feedback quality matters as much as quantity. A seller with hundreds of reviews but under 50% positive is just as much a red flag as a brand-new account. It's a scam pattern that looks completely different at a glance but fails the same underlying test.
What to check: Click the seller's username. Look at:
This is where raw intuition can fail you. If you don't track the market regularly, you might not realize how far off a price really is.
Here's a benchmark we use internally: if a listing is priced below 60% of the median price for that model, it's suspicious. That means if the typical Summilux-M 50mm sells for around $3,000, anything below $1,800 from an unestablished seller deserves serious scrutiny.
Some examples of real fraud patterns we've detected:
| Lens | Scam Price | Median Price | % of Median |
|---|---|---|---|
| Summicron 50mm f/2.0 | $346 | $1,449 | 24% |
| APO-Summicron 35mm f/2.0 | $3,125 | $7,521 | 42% |
| Elmarit 28mm f/2.8 | $971 | $1,730 | 56% |
The scammer's logic is simple: price it low enough to create urgency ("I need to grab this before someone else does"), but not so low that it's obviously fake. The sweet spot for most scams is 30-55% of market value.
Scam listings are almost always Buy It Now (BIN). Auctions take days, giving other buyers time to flag the listing or ask questions. BIN lets the scammer complete the transaction quickly before anyone raises concerns.
This doesn't mean all BIN listings are scams. Most legitimate sellers use BIN too. But a zero-feedback seller with a BIN-only listing at a steep discount? That combination is a strong signal.
Legitimate sellers of expensive lenses tend to write detailed descriptions. They mention the optical condition, whether there's haze or fungus, what's included in the box, and often reference their own photos. Scammers typically:
Check where the item is listed as shipping from. If the listing says "Ships from: United States" but the seller's other activity (if any) suggests they're elsewhere, that's a flag. Some scam rings operate across borders, creating accounts that list domestic shipping to avoid buyer hesitation.
We built an automated fraud detection system that scans every eBay listing we track. Here's the logic, simplified:
This runs automatically every day after our processes finish. We don't just hide the listings. We actively purge them so our users never see scam pricing polluting the market data. Pulling out listings that have already gone inactive matters too, since a lingering scam-priced record can quietly drag down the price statistics everything else on the site relies on.
Not every scam looks like a fresh, empty account. We've caught listings from sellers with real, double-digit feedback and no negative-percentage red flag at all: a "Brand New" flagship camera body priced 40%+ below what genuinely new stock sells for, from an account with just enough history to look legitimate at a glance. The same check runs across our lens listings too. Those don't get auto-removed the way a zero-feedback scam does, since the false-positive risk is real (a genuinely new, deeply-discounted item from an established dealer does exist). Instead they surface on our internal watchlist for manual review: automated where we're confident, human-reviewed where we're not.
Since implementing this system, we've blacklisted about 2% of every eBay seller we've ever tracked: several hundred accounts whose listings would have otherwise appeared alongside legitimate ones in our price tracking.
Everything above is fraud in the classic sense: fake or bad-faith accounts that take your money and vanish. There's a separate pattern that isn't fraud like that at all. We've seen it from real, established dealers with legitimate feedback histories: an eye-catching price on a desirable lens, but the listing description or photos point you toward the dealer's own website rather than eBay's Buy It Now checkout. Sometimes the lens shown isn't actually available at that price at all. It's a lure to get you off eBay and onto their storefront.
The likely motive is fee avoidance. eBay takes a percentage of every completed sale, and a dealer who gets you to finish the purchase on their own site instead keeps the full margin. I'm sympathetic to retailers here, whether they're online or brick-and-mortar. It's tough to make a decent living, and it gets even harder once everyone takes a piece of your sale. eBay fees, credit card fees, they all eat into an already narrow margin. Nonetheless, in this case the ad itself isn't honest about what it's offering, so I'm calling it out here. Steering buyers off-platform like this violates eBay's own policies, and it also means you lose eBay's buyer protection the moment you leave the platform.
This pattern doesn't get caught by the price-and-feedback system described above, since the seller is real and their history checks out. The tell is an outbound link or "check our website for availability" language in the listing itself, especially paired with a price on a high-demand lens that turns out not to match what's actually in stock.
What to do: If a listing pushes you toward an outside website, message the seller through eBay and ask them to confirm the item is available for purchase through eBay checkout at the listed price. If they can't, or won't, walk away from the listing rather than following the link. You lose eBay's buyer protection the moment you transact off-platform.
eBay scam listings in the used lens market follow a predictable pattern: new account, low price, high-demand model. Once you know what to look for, they're easy to spot. The harder part is resisting the pull of a price that looks like a once-in-a-lifetime deal.
If the price seems too good to be true, it is. Every time.
We track the used camera and lens market so you don't have to guess. Check current pricing on Used Lens Tracker and Used Camera Tracker before you buy. Knowing the real market value is your best defense against fraud.