What do you mean by not have the best offers? what are you comparing to?Did wonder why you quote from only a couple of companies at least for Nikon and they not have the best offers
I think that's the most comprehensive list I've seen! Ian makes a good point about adding a disclaimer, but I'd also suggest searching some review sites and drawing your own conclusions before adding a site, e.g.:
Thanks! I'll keep it mind as I add more, which is hold at the moment whilst I have a crisis over categorisation.I think that's the most comprehensive list I've seen! Ian makes a good point about adding a disclaimer, but I'd also suggest searching some review sites and drawing your own conclusions before adding a site, e.g.:
Some shops have never had a great reputation, and others seem to have had 'issues' in recent years.
Your site is called UsedLens.co.ukwhenever I look for used Leica lenses (other brands are available) it takes a while to find all the websites they're listed on
I guess it's the cross-system lenses like 4/3 or third party lenses in general that are the main issue? Some sites like Camerapricebuster have a simple Manufacturer->System->Category hierarchy, e.g. Leica->Leica M->Lenses. For third party lenses it's just (e.g.) Sigma->Nikon fit. This means splitting lenses from different manufacturers that fit the same cameras, but it can get messy otherwise (e.g. Should all classic M42 or K-mount lenses be together, regardless of manufacturer? How about the new mirrorless L-mount?).Thanks! I'll keep it mind as I add more, which is hold at the moment whilst I have a crisis over categorisation.
Should I include film?
How do I compress it, like this?
- Panasonic (non 4/3rds)
- Olympus (non 4/3rds)
- Sigma (Sigma mounts only)
- Micro 4/3
- Medium Format (mixed digital film?)
- 35mm Film (everything)
I started to look at a more comprehensive format, but I'm told I should keep it simple... I'm struggling to balance simple and the wealth of data to categorise.
I'm working on a results search for most retailers, it would be too resource intensive to drill down into each page and hope for more meta data which probably won't exist.Awesome. Good luck with monitising it.
Probably a lot of work, but filtering would be awesome, e.g. by mount, focal length... not sure how you'd do this, you'd have to maintain a lens data base that can be referenced that pulls through the metadata, with the lookup based on model number, if the retailers publish that..
So what would be enough to make it less confusing?For me, lenses is confusing.
The Canon EF and Nikon F mount lenses work on both digital and film bodies natively. Same for Leica M, Sony/Minolta, Pentax 645 and probably others.
For a film shooter it just means dipping into multiple headings and using search, which is still a billion miles better than what we have to do today (log on to each site manually and use their search).
I honestly don't think you can win and I feel like I'm just giving you work here... Best do what you feel is right... There are a ton of lens mounts out there... Canon alone has FL, FD (film), EF (both), EF-S, EF-M and RF (digi), so it would be much more intensive to set up. Search google for Lens mounts and open the wikipedia page where they're all listed. There's a few!So what would be enough to make it less confusing?
It's not exclusive to film, it's just that there are more esoteric mounts...What scenario will the film shooter be troubled by?
But the voigtlander and Zeiss will appear under Leica mountI honestly don't think you can win and I feel like I'm just giving you work here... Best do what you feel is right... There are a ton of lens mounts out there... Canon alone has FL, FD (film), EF (both), EF-S, EF-M and RF (digi), so it would be much more intensive to set up. Search google for Lens mounts and open the wikipedia page where they're all listed. There's a few!
It's not exclusive to film, it's just that there are more esoteric mounts...
"I want a 50mm lens for my Leica M6." (M mount) In your current setup, I'd search Leica, note the prices, then have to search Zeiss and Voigtlander to see what was available there.
"I want a 70-200 f2.8 for my Canon 5d4" Must search Sigma, Canon and Tamron(?) to get all the options.
"I've got an M42 adapter for my (whatever camera) and I want a 50mm lens for it..." Yikes!
If you know exactly what lens you want, it works fine. If I want the 50mm Summilux, I can go straight to the Leica dropdown & search for it. If that's the intent of your site, it's working well.
Maybe it's best just to change "Digital lens mounts" to "digital lenses" and let the user figure out what they want...
Nikon 135 dc (de-focus control). It’s an awesome portrait lens. I’ve owned 2 before and it’s always the first lens that gets sold when I’m “going off” photography again (and always the first one I miss when I’m back on it again!!)Ohh great site Dan.
Thanks very much. (Although you may just have cost me £550 on a 135dc!!)
Thanks,That's very neat - well done!
If I could add a couple of retailers, I'd have Camera Jungle and CEX.
Regarding spidering sites to get their prices - I'd keep the frequency nice and low.
I work in web analytics and you'd be amazed at how quickly robot activity bumps up the numbers - ruining them for their legitimate uses - then it's off to IT to find and block the browser agent/IP address...
Being a free acquisition source for a retailer will be welcome but being a nuisance won't be
And again - really nice job - I wish some of those retailers had such a slick search!
thank you, i'll add it to my list to addFantastic effort Dan, so difficult to please everyone but I was impressed by what you have done so far.
Has the potential to cost me money....
Another retailer to add if I may suggest..... Cambrian Photography.
resist! Resist! RESIST!!!
I can only imagine on the categorisation - given that MPB often used to put the wrong lens pictures or wrong lenses entirely up when they were similar - like the 3x Olympus 14-42 kit lenses.Thanks,
I'm keeping my hits for each retailer to once an hour, preferably in as few hits as possible.
Not sure if it's connected but my connection to clifton cameras is no longer working!
Not to mention I'm dying over here in trying to categorise stuff based off a scrape...
Thanks, I see I did miss the s off http by accident, put it in but same message.I can only imagine on the categorisation - given that MPB often used to put the wrong lens pictures or wrong lenses entirely up when they were similar - like the 3x Olympus 14-42 kit lenses.
Your link might already be blocked, glancing at your stackover flow example you are referencing http not https - it's not that simple is it?
Also make sure you're not accidentally hitting a loop - once upon a time in the beginning of the century one of our spiders got into an infinite loop on a car manufacturer site.
They very politely rang us up and asked us to switch it off until we'd fixed it
Once an hour is noticeable in most website analytics for smaller sites.
Say 5 pages x 24hrs = 120 pages per day.
Given you're only visiting once an hour - and I'm guessing you're accepting cookies but purging them each time - you'll be treated as a New visitor/New session each time.
Default sessions are usually 30mins.
So an extra 24 sessions and 24 new users every day - all from the same IP (I imagine)
...or worse if each spider is a new user 120 new users a day from the same IP.
No idea how busy some of those sites are but behind the scenes they could be running on a shoe string system - I can't imagine smaller camera chains have been investing heavily in IT since they went online.
A complete database search on used stock every hour will be a noticeable hit unless they've set something really over capacity or really well (see previous comment).
A robot hitting the site on a predictable basis 24/7 sticks out a mile.
A big site will accept it and filter it from their live analytics - a small site will see it as a cost overhead and block it.
If you know they're updating stock during business hours then throttling back refreshes outside regular hours would be polite.
If you see this as a long term project then you should probably contact sites and get their co-operation.
You should be sending them free customers - but they might not see it that way.
Keep going - it's really good!