JVC LS300 and covering the sensor

[Fenster's down]

Yep I do, crash course in larger sensor interchangeable lens school, have learned a lot.

One thing that makes it tougher is the lack of widespread interest in this camera makes forums like this slow so there isn't a ton of information on it. The chatter I have found mostly says it's a well-priced entry into larger sensors, I'm looking forward to what I can do with it.

[Fenster's down]

Q: If the EF to Micro Four Thirds speed booster is meant to cover a MFT sensor, does that mean there is vignetting using it with the super35 sensor and the VSM needs to be used?

[klk]

Q: If the EF to Micro Four Thirds speed booster is meant to cover a MFT sensor, does that mean there is vignetting using it with the super35 sensor and the VSM needs to be used?

I would guess yes. MFT is sort of an odd choice for a Super35 sized sensor, as the MFT sensor is quite a bit smaller- licensing fees likely had a lot to do with that choice. I would think a simple straight, non speed booster adapter would work best.

EF to MFT is a most practical solution to start building lenses with. The flange focal distance is shorter on the EF mount, so you can adapt Nikon F, Leica R, Zeiss Contax/Yashica mount, M42 etc. to EF, plus several vendors can sell adapters to convert older Canon FD to EF mount. And of course PL mount lenses.

[Fenster's down]

I'm went with the Veydra mini primes for now, liked the idea of covering the sensor without VSM and an adapter for now, read good things about them and seems they're a little sharper than the Rokinons. I'm going with the 16mm, 35mm and 85mm to get started, my thinking is the prime zoom will connect that range pretty well.

Now I'm just trying to get used to shooting in log, I kinda get it but it's still odd right now.

[mop]

Anyone used a M42 speedbooster on the Ls300? Any problems with the protusion at the back of the adapter?

[jdv]

I'm looking at the Veydra 25mm MFT, but would like to know if there's any vignetting.

One other point, you can adapt micro four thirds glass to some other mounts....


https://www.bhphotovideo.com/c/produ...hird_lens.html

[NorBro]

You can adapt MFT glass to other mounts, but vignetting will probably always occur with most MFT lenses. Not sure about those Veydras though.

[nutmegger]

The LS300 has a S35 sized sensor. There is a menu function called Variable Scan Mapping. VSM allows you to adjust how much of the sensor is used to record the image, depending on the lens and/or adapter. I use Olympus Pro MFT lenses and set VSM to 80%. There is a review of the LS300 at newsshooter.com that explains VSM.

[NorBro]

That's pretty much what the last two pages are about...

[Fenster's down]

You can adapt MFT glass to other mounts, but vignetting will probably always occur with most MFT lenses. Not sure about those Veydras though.

The Veydras cover the sensor at 100%, that's one of the main reasons I went with them, wanted to use the whole sensor without an adapter.

[NorBro]

I said to other mounts...that reply was to post #21. (Read the comment above.)

It was mentioned that MFT lenses could be used on other mounts and a link was provided to a MFT to E-mount adapter.

Not sure how the Veydras would do on a FS7, for example, with that adapter. Probably would be able to cover it, but other MFT lenses would not.

The E-mount Veydras definitely should be able to.

[Fenster's down]

That's cool, I was replying to the first sentence of #21, you had the 2nd.

I'm looking at the Veydra 25mm MFT, but would like to know if there's any vignetting.

One other point, you can adapt micro four thirds glass to some other mounts....

I haven't used the 25mm, but I have the 35mm and there is no vignetting on the LS300.

I don't know about MFT and other mounts, I liked that they covered the sensor, that was kind of the trade-off for locking in to the MFT mount that I may never use again. Still not sure I made the right call in that regard, but I liked the lenses and went with it for this cam.


[EDIT] - (originally thought there was no vignetting on the 16mm Veydra at 100% but I was incorrect, there is some small vignetting with the 16mm.)

[jdv]

Found this nice vidya by Rick Young over at Movie Machine about the Veydra's on the LS300:
https://youtu.be/fJrfsD8TsL4

He says the 2 widest angle lens do vignette on the LS300, but not the 25mm.

I wonder if Veydra is thinking about making them in EOS mount anytime soon. I'd love to get this glass, but outside of the LS300 can't really see using MFT mounted cameras.