How to Set Up Alerts for Used Camera Lenses on Craigslist and eBay

Used camera lenses are one of the best deals in photography. A lens that costs $1,200 new might go for $600 used, and unlike camera bodies, lenses hold up well over time. There's no sensor to degrade, no shutter to wear out. Good glass is good glass.

The catch? The market moves fast. Someone lists a mint condition 85mm f/1.4 for $400 and it's gone in two hours. If you're not checking constantly, you're going to miss it. And checking constantly gets old real quick.

This is the problem alerts solve. Instead of you hunting the lens, the alert hunts for you.

What Makes the Used Lens Market Different

A few things make hunting used lenses tricky compared to other gear.

First, there's a lot of overlap between systems. Nikon F-mount, Canon EF, Sony E-mount, Fujifilm X-mount, Micro Four Thirds - and half of these can be adapted to the others. So the person selling a Nikon lens might be a Sony shooter who just used an adapter. Search too narrowly and you'll miss deals. Search too broadly and you'll get buried in noise.

Second, the condition language is inconsistent. One seller's "light wear" is another seller's "heavy use." You have to get good at reading photos and asking questions.

Third, pricing varies wildly based on whether the seller knows what they have. Someone clearing out a parent's old camera gear might list a $700 lens for $150 because they have no idea what it's worth. These are the listings you want to catch first.

Setting Up eBay Alerts for Camera Lenses

eBay is the biggest market for used glass, and it has a built-in saved search alert system. Here's how to use it well.

Start with a specific search. Instead of just "50mm lens," try something like "Canon 50mm 1.4 USM used" or "Nikon 85mm 1.8G." The more specific you are, the more useful your alerts will be.

Once you have a search you like, click "Save this search" at the top of the results page. eBay will send you a daily email when new listings match. You can adjust this to weekly if daily feels like too much.

One thing to know: eBay's daily digest often batches listings from the past 24 hours, so you won't always get a ping the moment something goes live. For low-volume or highly specific searches that's fine. For competitive searches where listings go fast, you might want something faster.

Also save searches for common misspellings. People list "Cannon" lenses, "Nikon 85 1.8g" without the capital G, "simga" instead of Sigma. Misspelled listings get far fewer views and often sell cheap to whoever catches them first.

Setting Up Craigslist Alerts for Lenses

Craigslist does not have a built-in alert system. Never has. You can search it all you want, but it won't email you when a new listing hits.

This is where LurkMor comes in. You set up a search - lens name, your city - and LurkMor watches Craigslist for you. The moment a matching listing appears, you get an email or text. Not a daily digest. Not a morning roundup. An alert when it happens.

That matters for camera lenses because local listings often go to whoever responds first. If you're getting alerted in real time and someone else is checking manually twice a day, you're going to beat them to the good stuff pretty consistently.

For lens searches on Craigslist, try searches like:

• "50mm f1.4" (your city)
• "canon lens lot"
• "nikon glass"
• "sigma art"
• "zeiss lens"
• "photography lot" (catches estate sales and gear bundles)

That last one - "photography lot" or "camera lot" - is a sleeper. Someone liquidating a whole collection will sometimes list everything as one bundle. If there's one lens you want in there, you can sometimes buy the lot and resell what you don't need.

Which Lenses Are Worth Alerting On?

Some lenses are so common that you don't need an alert - you can find them any time. Others are rare enough that you really do need to be first. Here's a rough breakdown.

Set up alerts for these: vintage Contax/Zeiss glass, Leica M lenses, vintage Nikkor AI-S primes, Sigma Art lenses in less common focal lengths, Canon L series primes (they sell fast when priced right), any lens that just got discontinued.

You can be more relaxed about: Canon 50mm 1.8, Nikon 50mm 1.8G, kit lenses, super common zoom ranges like 18-55 or 70-200 in entry-level versions. These are everywhere and there's always another one.

The sweet spot for deal hunting: mid-tier primes from the major brands. The 85mm f/1.8, the 35mm f/2, the 135mm f/2. These are lenses enthusiasts actually use, so there's steady supply from people upgrading. And they're priced high enough that it's worth being first when a good deal hits.

Running Multiple Alerts Without Losing Your Mind

Once you start doing this, it's tempting to set up alerts for every lens you've ever thought about wanting. That gets noisy fast.

Be intentional. Pick the two or three lenses you'd actually buy today if the right deal appeared. Set alerts for those. When you get one and buy it (or decide you don't want it anymore), retire that alert and move to the next thing on your list.

Think of it like a wish list with alerts attached. You're not trying to monitor the whole used lens market. You're just making sure you don't miss the specific thing you're actually in the market for.

What to Do When an Alert Fires

Speed matters, but not at the cost of buying something bad. When an alert comes in, do a quick gut-check before reaching out.

Check the photos - are there clear shots of the glass elements? Any haze or fungus inside a lens is a dealbreaker. Look for photos in front of a light source so you can see if the glass is clear.

Check the focus ring and aperture blades if they're shown. Aperture blades should look clean and dark, not oily.

Then check the price against sold listings on eBay. Filter for "Sold Items" to see what the lens actually sells for, not just what people are asking. If the Craigslist price is at or below recent sold comps, it's worth moving on.

If it all checks out, respond fast and be specific. "I'm interested, can I come by today?" beats "how much is your lowest?" every time.

The Real Advantage

The photographers who consistently score good deals on used glass aren't luckier than everyone else. They've just set up systems that let them respond faster. Alerts are that system.

Set up your searches on eBay, use LurkMor for Craigslist, and then stop checking manually. Let the alerts come to you. When the right lens shows up at the right price, you'll know about it the moment it's listed.