Search the Community

Ok, I'm going nuts to get to the bottom of this, so here we are. I have this weird shadow* that appears on both short sides of the frame (even if in this picture is more evident on the left side), with the exact same weird shape, and with several kinds of adapters but ONLY with long lenses (the Contax 100-300 @ 200 and up and the Leica 180). *I don't want to call it "vignette" because it doesn't look like one, it looks more like a piece of transparent foil was in the way; please keep in mind that to make it this visible I cranked contrast and clarity, otherwise it is a problem only with the sky in that portion of the frame Every other lens is fine, with the same adapters. I've tried flocking the inside of the adapters, using different kinds, I even cleaned the sensor in the off chance it was some sort of halo on it that was causing this, but I'm still getting the "shadow". Any idea of what the hell might it be? My (wild) guesses are: a - that the camera lens mount itself might be a tad too small, and it interacts in some way with the parallel light rays projected by the long legacy lenses (I know, it's far fetched but I'm at a loss for more reasonable explanations). b - that the sensor is reflecting back a ton of light, and this interacts in some way with the back of the adapter and the mount of the legacy lens

Hi all! New Sony A7RII owner here. I am looking for recommendations for a tele zoom to be used only on the A7RII. I am pretty flexible in terms of focal length and speed, and mostly interested in optical performance as well as price. Size matters, but it is not the most crucial factor. Basically, I wish to find a fairly affordable lens which gives a flat field and good, even sharpness across the frame, at least at f/8-11, preferably at f/4-5.6, too. The focal length range should cover at least 100-200mm, over 400mm is definitely not needed, and down to even 28mm range is a nice option (as long as the 100-200mm performance is strong). As the mirrorless Alpha system opens so many possibilities and my requirements are not dictated by the numbers on the lens barrel, I am quite at lost. In this focal length range, I have previously used pretty much all the Canon L zooms and many of the 70-300 type consumer lenses in EF mount. I have no experience on their performance on this new body, and I no longer even have access to any of those lenses. For adapted lenses, I anyway prefer a solution that is usable with a dumb adapter ring (Canon EF isn't). The intended use for the lens is mainly tight landscapes and cityscapes. I therefore require the 100-200mm focal length range, and sharpness across frame is very important. May print really big sometimes, and will definitely view big at 4k resolution (and higher as soon as available) including crops. I will certainly use the lens also for detail shots, portraits, and some wildlife and sports. However, sports and birds in flight etc. are no priority, and this need not be the most flattering portrait lens either. Manual focus is just fine, and I currently mostly use MF lenses. Lens speed is secondary, but an f/2.8 lens is interesting. I prefer constant aperture, but it's not a major consideration (and does not rule out the 28-200 type zooms, if there are good alternatives out there). Tripod ring on the lens is good to have, but not a requirement. I travel a lot, walk around and do plenty of hikes, so small size is nice. My initial thought therefore is buying two lenses for this tele-zoom-for-landscapes purpose: one good smaller lens, and one bigger lens with higher performance. If a single lens gets the job done, this allows spending more on it. The short-term budget is perhaps about 1000 EUR/USD (for one lens), but I really don't mind going cheap. I don't think I will spend more than 2500 EUR/USD for the one or two lenses combined, and I may not have that much right away. Good adapter should be included in the price, if it isn't a native lens. I have some adapters, but they may be too flimsy for large and heavy lenses, and I have not tested them on the full-frame body so far. In summary, what's your recommendation for: - Tele zoom covering at least 100-200mm - Sharp across the frame - May be native or adapted - May be AF or MF - As small and light as possible (optical performance more important) - Should not cost much more than 1000 EUR/USD (with high-quality adapter)

Hello, I have became user of a6300 few days ago...I found this lens in attic and I was wondering if it can fit my a6300. Mount on this lens is m42 and I found adapter from m42 to e mount but I havent found that anyone has tried it yet. Does anyone of you have experience with m42 mount? Lens is made in Japan. I found there was few versions of same lens with different brand name(Rexatar, samyang). I dont have any experience and this would help me very much :)

Got my new Lense and Adapter :-) The Lense cost me only 70€. This old Tele Lense is pretty lightweight for its focal length and i´m quite surprised how good the results are :-) No sharpening on those samples, just usual LR workflow, but you have to boost the contrast and saturation quite a lot. Again this is a very good bargain if you are looking for a tele lense! Here are some Pics i made today with Sony A7II + Minolta APO 100-300mm:

Here is a Video i shot today on the A7II + Minolta APO 100-300mm. Picture Profile 7, SLOG2. Handheld. I´m surprised how good this lense performs also on Video. I got this lense for 70€ only. Get one if you can!