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Plossllens

The Model 3100 is an economical, light weight, and compact 30 Watt quartz halogen illuminator with a remote plug-in-the-wall transformer.

All Buyer's Guide Camera Comparison Camera Profiles Canon Contax/Yashica Film Filters Flash Fuji History Kodak Konica Leica Lenses Mamiya Minolta Nikon Olympus Pentax Point & Shoots Rangefinders SLRs Tips Topcon

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First, it allows specific wavelengths to pass in the forward direction, second it can reflect light at a 90o angle. This allows the light path to be passed ...

Anti glare glasses, or lenses treated with Anti glare coatings, also known as anti reflection, reflection free, AR or MAR coatings, were developed to reduce ...

Eyepieces for telescopes

Thanks for the thoughtful comment, Peter. Although I understand that current lens design generally prioritizes maximizing optical performance over the convenience of fewer filter sizes, I too can appreciate the '70s ethos of standardized filter sizes (Canon & Minolta @ 55mm, Nikon @ 52mm, and Olympus & Pentax @ 49mm) and then having two or maybe three more sizes at most to cover the rest of the lineup. It made things so much simpler in the accessories department for the photographer :-). Nikon today is a complete mess with 10 (count 'em) filter sizes with no standardization whatsoever. Best regards.

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Collimation in radiology is the process through which a beam of electromagnetic radiation is aligned such that it is comprised of parallel rays.

Excellent info on polarizers: for years I used a linear with an OM-4. Just purchased my 2nd OM-4, and was going to pick up with the linear again until I read this. Too much info out there that AF is the only determining factor: not enough info about exposure systems.

Glad to hear that you found the article helpful. I must confess that I never gave much thought to the metering side of things until I researched why they came up with circular polarizers in the first place during the 1960s...due to Leica and Canon pioneering the use of beam splitters for their SLR exposure meters. Best regards.

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A detector is an instrument which is used to discover that something is present somewhere, or to measure how much of something there is.

Hex Driver Wrench Gen 2 0.9mm. Product Info. On Point Hex Drivers (4) 1.5/2.0/2.5/3.0mm - Multi... $24.99. ONP3510. MIP Metric Speed Tip Hex Driver Wrench ...

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Very clear and excellent article, CJ. I had always wondered about that. You are spot on in your description about buying kits with such filters floating in the bag and the cheapo 2X int here as well haha. so true. Last Winter I enjoyed pulling al my filters out and giving them a good clean and cataloging. Only thing I would suggest differently is to buy correct size for all your lenses so you can maintain a hood on the lens, as POL is all about reduced glare anyway. That is where OM was such a brilliant system with a large number of lenses conveniently taking 49mm filters. And like you say, but good ones and they will survive most camera brand changes as you wisely grow into better quality kit as you get older.

Suffers from a quarter-century and counting film and manual focus SLR addiction. Has recently expanded into 1980's AF point and shoots, and (gack!) '90s SLRs. He even mixes in some digital. Definitely a sick man.