RJ jinfinance Focal Reducer

[andy lee]

yes just use it as a dumb Canon mount so your m42/ Pentax/ Olympus/ Contax Yashica etc mounting rings work fine on it

it turns your 2x crop Panasonic into an APSC Canon - ish !

[OzNimbus]

So my RJ M42toM4/3 adaptor arrived 30mins ago & all seems fine.

Slapped a few lenses on it - a couple of Super Taks (35 + 55) & a couple of Russains (Mir-24M + Helios 44-2).

Well as expected they get a lot wider & faster now on the BM Pocket.

Sharpness wideopen does have some roll off towards the edges, but this could be due to the lenses.

Stopped down a little & they do appear to be tack sharp.

No blue spot so far...

 

For the price all is good.

Sounds interesting... where can I order one?   I've got a ton of M42 glass I'd love to try out!

[dishe]

 

Will it work ok if I use my vintage Lenses adapted to EF then on the Ef - M43 Reducer? You know 2 adapters? Should be fine shouldn't it? Save me buying an m42 reducer when all my older lenses have been adapted to EF anyway.

 

 

I am currently using a Nikon to EF adapter on my RJ EOS-to-M43. No problem at all. You have to make sure the adapter you are using is high quality though. One of my Nikon-EF adapters is a cheap one that has some give to it. On its own, it was good enough to use on a Canon body, but on another adapter, that give gets a little more exaggerated. You want the lenses to be tight. 

 

Sounds interesting... where can I order one?   I've got a ton of M42 glass I'd love to try out!

 

I'd buy from the source to make sure you are getting the most recent batch. 
http://www.rjcamera.com/ocart/

 

I got mine from there. 

[dhessel]

I just got a RJ MFT to M42 reducer and I cannot even get it to seat in the lens mount on my BMCC. It almost seems like the adapter mount is a little to large in diameter. Any ideas?

[Bioskop.Inc]

Sounds interesting... where can I order one?   I've got a ton of M42 glass I'd love to try out!

Got mine through his Ebay store:

 

http://stores.ebay.com/rjcameraaccessorystore/

 

@ dhessel - sounds like you're going to be needing a dremel to adjust it yourself!

[JBraddock]

New version of Mitakon for Nex is out.

[Lucian]

Got mine through his Ebay store:

 

http://stores.ebay.com/rjcameraaccessorystore/

 

@ dhessel - sounds like you're going to be needing a dremel to adjust it yourself!

 

 

 

I ordered one and it arrived quite quickly. I have to wait for m43 mount for my digital bolex next month, but looking forward to it.

[cantsin]

I just got a RJ MFT to M42 reducer and I cannot even get it to seat in the lens mount on my BMCC. It almost seems like the adapter mount is a little to large in diameter. Any ideas?

 

I do have exactly the same problem as you.

[IronFilm]

I've send them a suggestion for a medium format focal reducer, I have totally failed to do one on my own (it has terrible aberrations, and only 0.6x reduction), I want to use my glass digitally without spending millions on MFDB

 

I have a Pentax 645 to Nikon F adapter, so then I can put my medium format glass on a speed booster :-) 

Only get a 0.71x of course, but is something! And waaaay cheaper than buying a Pentax 645Z! (though I'd love to own one)

[IronFilm]

Am I correct in assuming the "jinfinance" seller on eBay and the rjcamera.com website are exactly one and the same person?

 

Thus if I purchased either of these two products I'd get exactly the same item:

http://www.rjcamera.com/ocart/index.php?route=product%2Fproduct&path=20_65_66&product_id=62

http://www.ebay.com/itm/new-Nikon-F-G-focal-reducer-speed-booster-adapter-to-Sony-NEX-5-6-7-FS700-FS100-/360707999952

 

If so, why is there the US$40 difference between the two of them??? :-/

And are the Sony E mount focal reducers just as high quality as his m4/3 focal reducers?

[andy lee]

yes they are the same -  its the same item

 

they are all good nex and m4/3 same optical makers so glass is good