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All materialsPentax Lens Marking Secrets
The intricacies of symbols in the name of the lens is a mirror of his soul
What is the aperture of optics and what does it affect?
Aperture, aperture, maximum relative aperture - in simple words about the main thing
Tokina lens markings
Armed with the transcription of abbreviations, you can learn everything about the object from its full name
Everything is relative: interchangeable lenses for cameras from third-party manufacturers
Lenses from alternative brands: money down the drain or an increase in image quality?