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optics
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Can anyone explain the physics of an auxiliary telephoto / teleconverter lens?
An auxiliary telephoto lens that attaches to the front of a lens can use a variety of groups/lenses. Some use 2 groups with 4 lenses, some use 3 groups with 5 etc. I'm unsure how it exactly works and i'm looking for somewhere to learn. Is there anyone that can explain how the optics work and...- redrose_45
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- focal point groups optics physics teleconverter telephoto vignetting
- Replies: 4
- Forum: Talk Photography