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JVC 4KCAM Pro Handheld Camcorders
GY-LS300, GY-HM250, HM200, HM180 and HM170 recording 4K Ultra-High Definition video.

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Old February 18th, 2021, 02:26 PM   #1
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Questions on the GY-LS300

Hoping someone can answer a few questions on the lens system for this camera.

First, the mount is Micro 3/4 (M43) and the imager is full 35. When using lenses that were designed for a 35mm SLR with a lens adapter, on this camera, there is a crop factor. What would the coverage of a 50mm lens convert to, for instance?

These $100 lens adapters (not Metabones brand) that claim to offer an increase in F stop (speed boost) and prevent the cropping... are they effective and is there a loss of resolution when using them?

Thanks much!

UPDATE: Appears the conversion is about 1.5 so a 50mm effectively covers like a 75mm and so forth. Does that make sense?
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Old February 19th, 2021, 07:38 AM   #2
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Re: Questions on the GY-LS300

A 1.5 crop factor is what I experience. I have no experience with mount adapters with optics, but the Metabones T Smart EF/EF-S adapter gets good reviews if you have canon lenses.
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Old February 20th, 2021, 12:12 PM   #3
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Re: Questions on the GY-LS300

Thanks Luke.
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