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An optical coating is one or more thin layers of material deposited on an optical component such as a lens or mirror, which alters the way in which the optic reflects and transmits light.

learn more… | top users | synonyms

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5k views

What does a 'nano crystal coat' do on this lens?

The Nikkor 85mm f/1.4G AF-S has a 'Nano Crystal Coat'...what is that and why is it on most of their most expensive lenses? Obviously its a coating and some links seem to indicate it may increase ...
10
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3answers
4k views

What are the real-life benefits of B+W's MRC?

My 24-105L is in the mail, and I'm looking for a filter to protect the front element. I've decided to go with B+W since they seem to have the best quality to match my L lens. I've narrowed it down to ...
6
votes
1answer
319 views

What is Coating?

I see the word "Coating" in different questions (related to lenses and filters). What is Coating, Multi-Coating, and Nano-Coating? Update: For Coating Definition see Matt's answer For ...
4
votes
2answers
131 views

How durable are external lens coatings?

After reviewing some recent pictures, I was a little bit concerned that the image quality of the first lens that I bought (a Pentax FA 35mm f2.0 AL), because back then I was obsessed with keeping the ...
4
votes
1answer
674 views

Is Fujifilm's “Super EBC” a modern nanocoating?

In the Luminous Landscape review of the Fuji X-Pro1, Nick Devlin notes: ... how else could one read the “Super EBC” labelling on the lens other than as a nod to the company’s [Range Finder] past. ...
3
votes
1answer
196 views

What are the benefits of a multi-coated CP filter over a regular CP filter?

I would like to purchase CP filters for at least 2 of my lenses. I can go with either the lower cost regular CP filter or the HMC Multi-Coated CP filter. THe multi-coated filter is almost double the ...
3
votes
1answer
201 views

What are the difference in multi coatings of old lens like m42 lens and modern lens like canon EF-S?

I have some old m42 prime lens like Pentacon Multi-Coated f/2.8 135mm, and modern lens Canon EF-S 18-55 mm and Sigma 70-300 mm. How much is the difference in the multi-coatings of old and modern ...
0
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1answer
921 views

What is Canon's Super Spectra Coating?

In the Canon EF 25-105mm f/4 L USM IS lens specs, it says that the lens coating is "Super Spectra Coating". What is the Super Spectra Coating and how it differs from other types of coating?