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Hi, I have a Zhongyi Lens Turbo that fits fine on my Panasonic G6, but I recently noticed that it doesn't attach to my neglected Olympus OM-D E-M5. It will sit flush in the mount, but then you can't turn it at all to lock it in place, not even a fraction of a mm. I think i've probably had the Lens Turbo a little too long to return now. It didn't occur to me to test it on the E-M5, as I've been shooting so much with the G6, and it worked fine on that. Has anyone ever experienced anything like this either with a Lens Turbo, or with other adaptors or lenses? Should I try to force it? File something down?? Any pointers would be greatly appreciated.

Does the A7s' high-ISO capability effectively negate the dof advantage I’d otherwise get by choosing a Micro 4/3 camera? (Assuming I’m trying to achieve maximum dof.) In other words, shouldn't I be able to match even the deepest dof I could get with an m4/3, just by stopping-down and boosting the ISO…and of course changing the lens to match perspective, etc? Here's the thing: I'm bumping up from teeny-chip camcorders with 10x (yes, that’s double-digits) crop factors, and from this point-of-view, and in light of the A7s, the dof advantage of a 2x crop vs. FF seems almost non-existent. I’m wondering if I shouldn't skip over the m4/3 sensors and go with the A7s. (I’m usually in low-light, high-contrast environments, so the appeal of the A7s on other fronts is obvious.) There are a boatload of questions about the still-unreleased A7s, but in terms of dof, does my thinking make sense? Thanks.

Which Minolta MC/D to m43 lens adapter would you recommend?

Hey guys. I am primarily shooting with a GH3 and have a small assortment of native m43 lenses. I need a really versatile lens for events an was looking at the new lumix 14-140 3.5-5.6. I realize it's not very fast but I was thinking it could be a good all around lens for when getting the shot was more important than a specific look. I am also thinking of getting a BMPCC and since it has OIS I think it could be a good fit. Any other suggestions under 1k would be appreciated as well.

Hi, So i'm a Canon 5D Mark III owner and i'm looking for a smaller compact camera as a travel camera, B cam and for street photography. I mainly do video, so video features and quality is important but stills is equally important for personal projects if i'm not taking my Canon out. I've narrowed my choice down to two options - the Oly EM-10 and the Pany GX7. As far as i'm aware the picture quality (in stills) for both cameras is similar. However the GX7 has a 1/8000s mechanical shutter and a silent electronic shutter (which i'm not sure the EM10 has) and I do like the tilting EVF. The EM10 however has that fantastic IBIS (3 axis not 5 but footage shows it works almost as well). The only thing that is disappointing is the 30p restriction and the video quality/options aren't up to par with the GX7. Can anyone offer me any advice on which they think is a better choice? Particularly if you own or have used either of these cameras (or even the similar EM-5/EM-1) please share your thoughts/experiences. Thanks!

I've seen references to these issues here and there, but surprisingly few. So here's my frustration with Panasonic lenses. I shoot a lot of handheld run-and-gun stuff, and need to sometimes keep zooms. These lenses make a mess of that. UMIX G VARIO 14-140mm f/3.5-5.6 (updated version but I have been told the original is the same) As you zoom in or out, the focus will flutter, causing a rather ugly effect. Once you stop zooming, the focus will settle back to where you set it. But the fluttering/shifting focus effect during a zoom is very noticeable. This video was shot on manual focus, so the focus 'hunting' you see is not the auto focus. LUMIX G VARIO 12-35mm f/2.8 Similar issue here. The focus will sometimes shift during zooms, but what always shifts with this lens is the aperture. It's supposedly a constant aperture lens, but they are using some sort of electronic iris adjustments on zooms to keep a constant exposure. Problem is, the adjustments happen in steps, making it noticeable when zooming in our out. Okay, before some posts about how these are designed for still photography and if I want a video lens then buy a video camera, or something to that effect. Well, the GH3 is basically a hybrid that embraced video. They did a nice job. Why not make a better lens that also embraces video? I haven't seen too many Canon or Nikon lenses with these issues, though I have less experience with those so it's possible some do. In any case, very frustrating given how great the GH3. Going to a 3rd party lens like the Sigma 18-35 means losing stabilization, which I also need. blah.

As a result of a slight cash shortage I have decided to sell 2 of my most prized lenses. Yes it hurts ;)   - Voigtländer Nokton 25mm f/0.95 (SOLD) - Olympus M.Zuiko 12mm f/2.0   [attachment=562:voigt+olympus.jpg]   Both are extremely sought-after prime lenses for the Micro Four Thirds system. The Olympus is arguably the best wide-angle lens available for the GH2 and GH3, and the Voigtländer's reputation as a beautiful video and photography lens is well-deserved.   Both lenses are in perfect working order, with only a few minor cosmetic bumps. The glass is completely free of scratches, internal dust or fungus.   Lenses are on offer seperately or together with a generous discount ;) PM me for pricing & more photographs if you are interested! Or contact me at jack.versen@gmail.com.

Hey guys, GH2 owner.. I have seen Rokinon's 7.5mm Fisheye they have for m43'rds and then I saw their 85mm F14 telephoto lens made for 4/3rds (on my wish list) for $300!! http://www.bhphotovideo.com/c/product/769411-REG/Rokinon_85M_O_85mm_f_1_4_Aspherical_Lens.html So I decided to take a look at their site and find out they have some also a 24mm F1.4 lens for $800.. I know its not as popular as the Voig F0.95 http://www.rokinon.com/product.php?id=191 Furthermore, they even have CINE lenses coming soon, including a 8mm HD Fisheye T lenses http://www.rokinon.com/product.php?id=206 and 35mm T1.5 CINE lens for Canon (for now hopefully).. http://www.rokinon.com/product.php?id=202 under $600 !!!!!! deal or no deal?? Wanted to get other people feedback about Rokinon and their come up with lens for both photographers and now cinematographers...