Which lenses are not in the database?

We don't record:

  • lenses designed for formats other than APS-C, 35mm full frame, medium format (up to 6x7),
  • lenses with Altix, Canon J, Deckel (DKL), Exakta, Exakta 6x6, Soviet M39x1, Praktiflex M40x1, Miranda, Pentina, Praktina, Voigtlander ProminenT, Rectaflex, Werra mounts,
  • lenses of little-known brand names, including but not limited to: Acall/Kyoei, Isco (Optische Werke) Göttingen, Fujita Kogaku, A. Schacht München/Ulm, Steinheil München, Sun,
  • lenses of junk brand names, including but not limited to: Access, Accura, Admiral, Albinar, Asanuma, Beroflex, Berolina, Bower, Braun, Cambron, Carena, Centon, Coligon, Computar, Cosmicar, CPC, Danubia, Deitz, DeJur, DOI, Elicar, Focal, Formula 5, Hanimex, Hoya, Javelin, JC Penny, Kaligar, Kalimar, Kawanon, Kenlock, Lensbaby, Lomography, Makina, Marumi, Miida, Mitake, Nikura, Ohnar, Opteka, Optomax, Osawa, Owen, Ozeck, Pallas, Paragon, Pentor, Phoenix, Photax, Polaris, Porst, Prinz, Pro Optic, Promura, Revuenon, Rexagon, Rexatar, Rokinon, Rokunar, Sakar, Samigon, Sears, Sirius, Starblitz, Sunagor, Tefnon, Telesar, Tou/Five Star, Unitor, Universar, Upsilon, Varexon, Vitacon, Walimex, Weltblick, Wollensak, Zykkor,
  • lenses made in Russia / post-Soviet countries,
  • Korean and Chinese lenses,
  • autofocus lenses designed for manual focus cameras,
  • lenses developed for military applications (for example, ELCAN lenses made by Ernst Leitz Canada for U.S. Navy),
  • CCTV, projection, cine, stereo, enlargement, microscope lenses,
  • attachment lenses,
  • telecompressors,
  • prototype lenses.

Website A gives different information about lens B. Do you plan to bring your information in line with that website?

On our website, lens specifications are unified and filled out strictly on the basis of data contained in booklets or instruction manuals published by lens manufacturers. We do not use unverified information (i.e. private information not based on manufacturer documents). Because similar independent websites never state their sources, we are not interested in any information from them, and we never sync with them.

Do you collect information about lens serial numbers?

Sorry, but we do not collect this kind of data. We do understand that sometimes serial numbers are important and useful (especially in the case of Nikon and Leica lenses), because they can help to distinguish one variant of the lens from another, roughly determine the year of production etc. Anyway, currently we do not have any plans to record sets of serial numbers in our database.

Do you sell cameras, lenses or other photographic equipment?

No, we don't sell anything. Nevertheless, there can be links on the pages of our website to online stores or private sellers of photographic equipment, which we consider reliable and whose services we often use when we want to purchase photographic equipment.

Can you please help me determine the original or current market price of the lens?

Sometimes users of our website have been questioning us in the comments about original or current market prices of certain lenses. Typically, these questions are due to the fact that such users plan to sell lenses on marketplaces (for example, eBay).

Please be informed that our website specializes solely in providing information about lenses. We do not sell them or track their prices: it's just not interesting to us. We also do not provide users with the opportunity to place advertisements. Therefore, we cannot help you determine the original or current market price of a particular lens.

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Sierra Anderson
Sierra Anderson
2 years ago

Hiya! I’m curious to know if there is an API available for your site – I’m looking to build a discord bot & it would be a really good way to implement getting lens specifications

Giovanni Gatto
Giovanni Gatto
2 years ago

I would have asked the same. Would you allow to do it as open source contribution?

Giovanni Gatto
Giovanni Gatto
2 years ago

To make the data referable and augmentable. I collect lenses for example, and write an inventory in a spreadsheet, but all the raw data already existing on your website, has to be entered manually for each one. Also as the name API suggests, one could write apps that work with your data, including your own ones, like the website. It is a good practice to decouple the GUI and the database this way. Also, it is precious data, publicly accessible anyway, just not so convenient as it could be, but that is maybe my minority philosphy.

KK Low
KK Low
1 year ago

HI, I have a Rolleiflex 6008i Apo Symmar lens that is having error issues with the 6008i body. I believe it is the lens internal problem and would like your advise on which part in the world is Service being offered for such Rolleiflex equipment. As I am from Malaysia I would prefer an Asian centre. Thank you.

10 months ago

Hallo, darf ich Screenshots von Linsenrechnungen dieser Webseite in meinem YouTube Kanal nutzen oder gibt es da Rechtliche Einschränkungen?Sehr schöne Seite mit wirklich vielen Informationen. Sehr übersichtlich. Find den Vergleich von ähnlichen Objektiven sehr gut. Schade ist nur das keine DDR Objektive geführt werden.

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