Which would create a 1:1 magnification for a Pentax Camera. still does not explain why while A7R (w/ 55mm, body mounted) is noticeably affected by relatively slow moving shutter blade (1/160 x-sync), A7 (w/ 55mm, body mounted) is not with faster moving shutter blade (1/250 x-sync, EFCS OFF)… unless the body material itself makes some difference (plastic front in A7 vs metal front plate in A7R) ? Sony A7mk2, Canon 24-105mm f/4, Slik 700DX Tripod. The upcoming Sony A7rII full frame mirrorless camera is rumored to feature 36MP sensor, EFCS, IBIS and faster AF. So is the bokeh worse or is it just different? So we think it is fake. Fred thanks for reply. Enabling EFCS on Sony Mirrorless Cameras. I'll make sure to turn it off for that but I'll leave it on for general landscape or walk around use. But recently I've heard people talking it it messing with the bokeh and image quality. Choose from 5 options and Find the best price for Sony A7 II from 28 offers. There are other factors that come into play. However, on certain cameras – specifically the Nikon D810 and D850 – turning on EFCS sometimes does not do anything. Lamp to full, shutter to 1/1000 second, make 16 exposures with new focusing for each, turn the light down a stop, turn the shutter speed down a stop, make 16 exposures… until you get to 1/60 of a second. This compares to a lag as low as 20ms when shooting with EFCS enabled. I also got the Sony 85mm f1.8 as it's a no-brainer at the price. Find information and receive instant notifications about your product Those are with the a7RII and the Sony 90/2.8 macro. For example, with the Sony A7 III, you simply go to: Shooting Menu 2 > e-Front Curtain Shut. Dec 12, 2016 at 08:24 AM June 30, 2018 By JimK 5 Comments. I can't really justify the A7Rii or A9, but this seems a reasonable compromise - I get an adequate pixel count, IBIS, electronic first curtain and a few other nice things, for less than moving up to an X-T2. Contact your Sony Support team. Also what are the advantages? I mounted a Sony/Zeiss 55mm f/1.8 Sonnar FE (hereafter called the Zony 55) to the camera under test. The EFCS may cause blur or ghost in image at situations such as when using high speed shutter (say 1/8000s) or wide aperture (f1.4 for example). Enabling EFCS … I didn't mention settings because it happened on so many different settings. Am i wrong in seeing that their x sync speeds are the worse? A short while ago, I reported on the shutter latency of the Sony a7III using the all-mechanical shutter. There has been some debate online (and a lot of hot air) about whether you should be switching the e-front curtain shutter off on your Mirrorless camera. Required fields are marked *. If there was a specific issue caused by EFCS at a given shutter speed on non-native lenses, we'd have examples with specific tests demonstrating the ability to repeat the … I mounted a RRS L-plate, clipped it in landscape orientation into an Arca Swiss C1 head which was attached to a set of RRS TVC-44 legs. Image processing for in-camera histograms, Making the in-camera histogram closely represent the raw histogram, Leica 90/2 Apo-Summicron ASPH-M on GFX 50S. Thanks to anyone who can clarify. I mounted a Sony/Zeiss 55mm f/1.8 Sonnar FE (hereafter called the Zony 55) to the camera under test. Sony Alpha a7 IV (Also known as a7IV, ILCE-7M4) is an upcoming professional full frame mirrorless camera expected to be announced in 2021. a7IV will replace currently a7 III.Since the a7R IV (B&H/Adorama/Amazon) and a7S III (B&H/Adorama/Amazon) have been released.So we are near for the a7IV announcement. 5.3. High speed sync requires that the EFCS is disabled in order to prevent banding. Support by Sony (Mobile App) Never miss an update again! Thanks again for all that tesing and sharing! The a7III latency is a lot less with the EFCS, since the camera doesn’t have to wind the shutter before it can get the shot off. You will only see the ill-effect of EFCS on bokeh rendering with fast primes at high shutter speeds (>1/1000s). There is a small, but noticeable effect of the a7’s mechanical FCS at shutter speeds of around 4 milliseconds (1/250 second). Archive 2016 · Electronic Front Curtain Shutter on Sony A7 ii. The difference in AF performance between the A7 series cameras is quite noticeable, particularly when shooting in good light – the A7 II acquires focus much faster in com… But I've just read an article on the web that suggested one way to avoid it is to set the shutter speed to 1/125 and I looking back at previous photos I notice that although there is still some banding at that speed, it's much less noticeable. Before it, the Sony Alpha A7S II and A7R II both supported uncompressed raw shooting. That article answered all my questions. Panos are usually shot at high aperture (f/8 or f/11) so to get 1/1000s or faster would be rare. A reader asked me to run some tests to see how much the a7 suffered from shutter shock with and without the electronic first curtain shutter. I repeated the tests today using the EFCS, and added the a7RIII and a9. https://phillipreeve.net/blog/limitations-of-the-electronic-shutter-function/, https://www.fredmiranda.com/forum/topic/1453361, https://www.dpreview.com/forums/post/56328210. Although I am aware of the potential issues regarding high shutter speed using EFCS but sometimes, while shooting in the field, I just didn't think about it. The A7R had problems with shutter shock so using the electronic first curtain shutter as much as […], Your email address will not be published. Photography wins -- most of the time. On the A7II and A7R2 the lag was over 300ms. Since I haven’t tested the a7R with this lens with my new protocol, I tested both cameras. Using the ND filter and the light together to control the, and made a series of exposures of durations from 1/800 second through ¼ second at 1/3 stop intervals. That means it will have the same sensor as the A7R, nor the rumored 50MP.. Sony A7 II and Sony A7 have sensor sizes so they will provide same level of control over the depth of field when used with same focal length and aperture. I mounted a Heliopan variable ND filter on the lens. I decided to start with what should be a pretty easy test, so I used a 55mm lens. Contact support. Since I've owned my A7 cameras I've always had Electronic Front Curtain Shutter turned on. I converted the Imatest cycles/pixel data to cycles/picture height, and made plots. Manual seems to indicates "no". Why you use 55mm ? I had no clue why until ran across this explanation: Is it truly only an issue at very large apertures, ~1.4 or larger, or can it affect shots at 1.8/2.0 as well? What’s wrong with conventional lens screening? hiepphotog wrote: If you worry about panos, I don't think it would show up much. Self-timer set to 2 seconds; OSS set to off. What do you think? Sony a7III, a7RIII, a9 shutter latency — EFCS. With the light on full and shutter speed set to 1/800 at the start, I controlled the number of photons hitting the sensor with the ND filter until I got to 1/60 second, then I left the filter at that setting, and controlled the light level with the Fotodiox control until I got to ¼ second. I processed the images in Lightroom 5.3 with default settings except for cropping and white balance, then I processed them in Imatest, measuring the MTF30 and MTF50 for both vertical and horizontal edges. Photography meets digital computer technology. Sony A7II and the PK to Nex lens adapter. A late reply, but yesterday I finally went out and got an A7ii. Different people like different looks. The fact is that Sony cameras with EFCS (like the original a7) have been out for years now. On some cameras like the Sony A9, this menu option will be under the Shooting Menu. Yet, I would have believed the contrary, such is the sensation of greater purity and fluidity. Also maybe good at slower shutter speeds. Best Prices Best Products Best Shops Best Reviews Price Alerts Price Trends on idealo.co.uk Given how important EFCS can be at slower speeds, and how the issues are well known (Sony even mentions them in the manual). I tend to use f5.6 or f8, and rarely have shutter speed over 1/400. To make the example I simply started pushing the speed up until it became very obvious in the preview. At all times the a7R horizontal resolution (the resolution for vertical edges) is better than the a7’s. This might make a difference on a7r ii where you need maximum sharpness. But there are unfortunately some limitations you should be aware of. This hybrid AF system is a combination of phase and contrast detect AF, which allows for much quicker AF acquisition than only contrast detection, which is found on both Sony A7R and A7S. I shoot quite a bit of stuff with 35,50, and 85 at 1.4 and 135 f2 and I'm usually outside using high speed sync so shutter speeds are pretty high to get rid of ambient. This looks a lot like the MTF50 curve, except that the a7R’s shutter shock does not adversely affect image quality enough to bring it down to the level of the a7. Part 2, Sony A7 Adapted Lens Settings - Outside The Shot. > On. I mounted a RRS L-plate, clipped it in landscape orientation into an Arca Swiss C1 head which was attached to a set of RRS TVC-44 legs. The upcoming Sony A7rII full frame mirrorless camera is rumored to feature 36MP sensor, EFCS, IBIS and faster AF. On the a7II, this turns off IBIS. I currently have the A7r but want a 2nd body and am wavering between the A7II and a used A7. Thus, we have three sets of results: a7R, a7 with EFCS, and a7 without EFCS. For example, electronic first-curtain shutter (EFCS) is a fantastic tool for any landscape shooter who has a high-resolution camera; fine detail can be destroyed by the slap of a shutter, let alone a mirror. Visit our Community and share your experiences and solutions with other Sony customers. Two days ago, I posted data for the Sony a7R and a7II paired with the Sony 70-200mm f/4 OSS FE lens. So far, I have not seen any ill effects at slow shutter speeds. I set the ISO to 400, focused wide open, and set the aperture to f/5.6. I have a couple of f2 lenses, but nothing faster. DxOMark Sensor Scores At Camera Decision, we also look at Dxo Mark sensors when available as we think it is a good indicator of image quality. The Menu button located to the left of the electronic viewfinder obviously opens up the camera menu – … However, using the Sony and the lens adapter, I think, it adds another 27mm making the minimum effective tube length 52mm and producing a magnification of 1.54. Yes, i think this was the problem. […] Kasson did extensive testing of the EFCS on the A7 and A7R. When Sony originally released the A7R, it did not have an EFCS feature and it had a pretty loud shutter mechanism that caused quite a bit of damage when shooting at particular shutter speeds. All I know the shutter vibration usually come with longer lens . I'm seeing A7 bodies on sale used for very reasonable, in the $800-900 range. Starting from £729.00. I'll try some other lenses. ... less money, smaller files, EFCS. The minimum depth for the bellows is 25mm when tightened all the way. Say, comparing tonality, vibrations and colour shifts at 400-800asa for a 23 x 34 cm size magazine’s spread. All full frame E-mount cameras (except for the A7r) feature an electronic shutter in addition to the mechanical shutter. > Surprisingly, at least to me, is that the a7 is not much affected by its mechanical first curtain shutter. Oh snap. Just like other Sony mirrorless cameras, the A7R II is definitely “right-heavy” on the back, with almost all buttons located to the right of the camera LCD. While most of them only offer an “electronic first curtain shutter” the A7s(II) and and A7rII even offer a completely silent, purely electronic shutter. Repair, Warranty & Spare Parts. I think one of the big reasons that the a7R is more affected is that it has higher resolution to start with. it is not like 24mp is affected to some lesser degree… it is like it is not affected at all (not talking about the situation when you mount tele lens on tripod with A7 attached to that lens, etc)… the way you mount bodies was the same, so it is either the body itself and/or mechanical-wise the shutter in A7 is just not only faster, but better than in A7R (except that really smallish drop @ 1/250 for horizontal resolution, but not as expected for vertical one). How fast is the Sony a7RIV silent shutter. I didn't test EFCS at 1/8000, since there are other reasons to not use it at such high speeds. Image stabilization helps in that regard. Thank you!!! I mostly shoot portraits at 1/200 or faster so maybe I should just keep it off? Please LABEL and give clear EXIF data for relevant models for people to see and judge upon. If you have a Sony mirrorless camera, you will need to find the menu item “e-Front Curtain Shut.” within the Setup sub-menu and change it to “On”. EFCS on, in the case of the a7II; Manual exposure mode. MTF50 for horizontal edges (the a7 curve with the EFCS on is indicated by the E suffix: You can see that a7R exposures near 10 milliseconds (1/100 second) are affected enough by shutter shock that the vertical resolution drops to that of the a7. Am I taking an image quality hit by leaving this turned on? I keep it on, it's not really a big deal. The most pronounced effects on bokeh are really apparent after 1/2000s. Your email address will not be published. a7rii EFCS and non-Sony lenses: Work ok? Slicing and dicing the data another way, we can see when the a7R shutter shock degrades sharpness to a7II levels, if MTF50 is your sharpness metric. And you can tell us the news & rumors though our contact form.. The uneven exposure issues at higher shutter speeds is more dramatic when using adapted lenses. Thanks so much! Sony have already explained that RAW is still compressed and hasn’t gained in bit depth. Book, track or maybe even avoid a repair. indeed… kind of unexpected, may be because of tripod + short (dimensions) lens though (and the story will be totally different with camera in hands). I have had too many images ruined by EFCS when I was not aware that my shutter speed was >1/1000sec, so I leave it disabled most of the time. Shop for Sony A7 II Compact System Cameras. With the Nikon D810 and D850, go to: Custom Setting Menu > Shooting/display > Electronic front-curtain shutter > ON. Furthers your vision sync requires that the a7R is more dramatic when using lenses... Nothing faster can tell us the news & rumors though our contact form raw histogram, 90/2... 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