MC-14 + Panasonic 100-300mm

[Phil]

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.

[Graham_of_Rainham]

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

[pdk42]

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.

[Phil]

Thanks for the information. I sort of suspected there was some type of incompatibility there but was not sure specifically.

[KG75]

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

[Harold Gough]

Originally Posted by KG75

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?

Originally Posted by KG75

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

[KG75]

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

[Harold Gough]

Originally Posted by KG75

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.

Harold