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Forum: Optics Theory - 02-06-2019
Replies: 57
Views: 3,179
Posted By David Hughes
While you are all here can I ask if the advent of...

While you are all here can I ask if the advent of optical grade plastic meant that a lot of glass compound lenses were replaced by one plastic lens?

I'm thinking of the triplets that look remarkably...
Forum: Optics Theory - 02-04-2019
Replies: 57
Views: 3,179
Posted By David Hughes
In some cameras it means a plastic lens. Those...

In some cameras it means a plastic lens. Those I've seen were no better and no worse than normal lenses. OTOH I've been very pleased with "proper" glass ones in various lenses.

I won't mention the...
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