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Converters, adapters and extension tubes All those lens accessories that get in between the lens and the camera.

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Old 16th April 2018
Phil Phil is offline
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MC-14 + Panasonic 100-300mm

Has anyone had any experience using the MC-14 with the Panasonic 100-300 lens? How compatible are they regarding sharpness. I have a great copy of the Panasonic lens - super sharp at all apertures and was wondering about image degradation with the MC-14 converter.
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Old 16th April 2018
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Re: MC-14 + Panasonic 100-300mm

The MC-14 is designed to work with the 40-150 & 300 PRO lenses. I don't think it will fit the 100-300.
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Re: MC-14 + Panasonic 100-300mm

There is a protruding element from the TC which goes into the lens. It will only work on the 40-150 and 300 Oly "Pro" lenses. There are also extra pins.
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Re: MC-14 + Panasonic 100-300mm

Thanks for the information. I sort of suspected there was some type of incompatibility there but was not sure specifically.
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Re: MC-14 + Panasonic 100-300mm

It would make the 100-300 very slow and probably wouldn't focus very well if it did fit. TCs are best used on fast glass
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Re: MC-14 + Panasonic 100-300mm

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Originally Posted by KG75 View Post
It would make the 100-300 very slow and probably wouldn't focus very well if it did fit.
"Very"? One stop! Focus? What's that all about?

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Originally Posted by KG75 View Post
TCs are best used on fast glass
Not necessarily. Unless you are working at full aperture, you can always open up a stop.

For close-ups and macro you can increase magnification at the same working distance.

Harold
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Re: MC-14 + Panasonic 100-300mm

One stop is huge when the lens is already not the fastest, I had the lens, it's poor in low light - with winter coming best of luck using it with a TC - but don't worry either way, as it isn't possible. Using TCs some cameras don't focus very well at F8+ I thought this was common enough knowledge
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Re: MC-14 + Panasonic 100-300mm

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Originally Posted by KG75 View Post
One stop is huge when the lens is already not the fastest, I had the lens, it's poor in low light - with winter coming best of luck using it with a TC - but don't worry either way, as it isn't possible. Using TCs some cameras don't focus very well at F8+ I thought this was common enough knowledge
Your comments were general ones, not specific to poor light. "Focus" is a general term. If you mean AF, your comment about "focus" has validity, such that e.g. it may have limited functionality in macro at high magnification and small aperture. I regularly use a x2 (2 stop) TC for macro and find that the sensor gives up (no steady image in VF) before the AF and I have to provide more light for framing and focusing.

If using "f8 +" in low light, with the TC, opening up the lens one stop will restore the AF functionality.

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