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p.2 #2 · The sensor read-out times on the A7Cxx cameras?
GMPhotography wrote:
Maybe 1/120 for the A7RV but that’s a passing quote I saw. Still slow and I could be wrong in this
It is wrong. Snapsy here on FM did a lot of testing and developed a data base linked in the post above. Unfortunately it is 1/10 of a second for the A7r V and I say that as an A7R V owner.
p.2 #3 · The sensor read-out times on the A7Cxx cameras?
Steve Spencer wrote:
It is wrong. Snapsy here on FM did a lot of testing and developed a data base linked in the post above. Unfortunately it is 1/10 of a second for the A7r V and I say that as an A7R V owner.
1/10 of a second for photos, right? In practice, has this affected your photography? Has the rolling shutter been an issue?
p.2 #5 · The sensor read-out times on the A7Cxx cameras?
Critters wrote:
I knew the A7R5 had a slow readout but tried ES on a flying damselfly. The body was fine but the wings, wow something from science fiction.
Picture?
Aug 25, 2024 at 06:48 AM
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p.2 #6 · The sensor read-out times on the A7Cxx cameras?
lsquare wrote:
1/10 of a second for photos, right? In practice, has this affected your photography? Has the rolling shutter been an issue?
Part of the reason I got the A7r V is that I primarily shoot still or very slow moving targets. If I want to shoot faster moving targets I also have an A9, and if I want to shoot video I have an A7s. So, the slow sensor scan speed (i.e., sensor read out) does not affect my photography, but I have other cameras that I would use if it mattered. That said I use the A7r V for at least 95% of my shooting, so even if I didn't have the other cameras the slow sensor scan speed wouldn't affect my photography much, but that is me, YMMV.
p.2 #7 · The sensor read-out times on the A7Cxx cameras?
Steve Spencer wrote:
Part of the reason I got the A7r V is that I primarily shoot still or very slow moving targets. If I want to shoot faster moving targets I also have an A9, and if I want to shoot video I have an A7s. So, the slow sensor scan speed (i.e., sensor read out) does not affect my photography, but I have other cameras that I would use if it mattered. That said I use the A7r V for at least 95% of my shooting, so even if I didn't have the other cameras the slow sensor scan speed wouldn't affect my photography much, but that is me, YMMV....Show more →
Steve --
Do you run into LED issues with the slow readout? How do you work around that and how much of a bother is it? A7RV and A7CR are great cameras, with the one limitation of a slow read-out.
Aug 25, 2024 at 08:02 AM
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p.2 #8 · The sensor read-out times on the A7Cxx cameras?
chiron wrote:
Steve --
Do you run into LED issues with the slow readout? How do you work around that and how much of a bother is it? A7RV and A7CR are great cameras, with the one limitation of a slow read-out.
Almost all my photography is outdoors and when I do shoot indoors I rarely have issues with LED as I typically try to use window light. I have a big preference for sunlight in my photos. When I do shoot with lots of artificial light it is usually sports and then I use my A9, but I hear reports the A7r V syncs well with LED light and is able to overcome many banding issues, but I just don't do enough shooting in those types of environments to verify that.
I do think the A7r V, which I find to be a great camera, has other limits than a slow sensor scan speed. Capping out a 10 fps is enough for me, but I am sure that is limiting to a number of people. It also lacks a number of capabilities as a video camera unrelated to sensor scan speed. I also find that although it is great for acquiring focus when I tried to use it for tracking with California Condors a few months ago, tracking was nowhere near as good as the A9. So, it probably has some limits in tracking in autofocus even though it has quite capable AF. That said, it is my favorite camera that I have owned. It is a great match for what I shoot and the way I like to shoot. I am very happy with it.
p.2 #10 · The sensor read-out times on the A7Cxx cameras?
Steve Spencer wrote:
Almost all my photography is outdoors and when I do shoot indoors I rarely have issues with LED as I typically try to use window light. I have a big preference for sunlight in my photos. When I do shoot with lots of artificial light it is usually sports and then I use my A9, but I hear reports the A7r V syncs well with LED light and is able to overcome many banding issues, but I just don't do enough shooting in those types of environments to verify that.
I do think the A7r V, which I find to be a great camera, has other limits than a slow sensor scan speed. Capping out a 10 fps is enough for me, but I am sure that is limiting to a number of people. It also lacks a number of capabilities as a video camera unrelated to sensor scan speed. I also find that although it is great for acquiring focus when I tried to use it for tracking with California Condors a few months ago, tracking was nowhere near as good as the A9. So, it probably has some limits in tracking in autofocus even though it has quite capable AF. That said, it is my favorite camera that I have owned. It is a great match for what I shoot and the way I like to shoot. I am very happy with it....Show more →
I kind of wish Sony maybe reduced the resolution if that increased the sensor read speed. Better video specs would have been nice, but I guess that might encroach into a9 or even a1 territory.
Aug 26, 2024 at 05:52 AM
Steve Spencer Offline • • • • • • • Upload & Sell: On
p.2 #11 · The sensor read-out times on the A7Cxx cameras?
lsquare wrote:
I kind of wish Sony maybe reduced the resolution if that increased the sensor read speed. Better video specs would have been nice, but I guess that might encroach into a9 or even a1 territory.
The A7R series has always had a slow sensor scan speed. It is their high resolution, high dynamic range, max IQ camera. I think it is great that Sony has this option. Sony's more video centric camera is the A7S series, and these are excellent for video but have very low resolution. The A1 is the flagship and is great for just about everything, but expect improvement with the version II that will most likely be out within a year. The A9 has always been the action oriented camera and with the global shutter the A9 III has taken this to a new level. The A7C series offers full frame at a very small size. If I were to quibble with Sony's lineup it would be with the A7 IV, adding more MP to that version without really increasing sensor scan speed wasn't very competitive, IMO. I like what Nikon did with the Z6 III by deciding not to increase resolution but instead adding a partially stacked sensor to increase sensor scan speed. Still from top to bottom Sony has a very solid lineup of cameras and I see no reason for that to change any time in the foreseeable future.
p.2 #12 · The sensor read-out times on the A7Cxx cameras?
Steve Spencer wrote:
The A7R series has always had a slow sensor scan speed. It is their high resolution, high dynamic range, max IQ camera. I think it is great that Sony has this option. Sony's more video centric camera is the A7S series, and these are excellent for video but have very low resolution. The A1 is the flagship and is great for just about everything, but expect improvement with the version II that will most likely be out within a year. The A9 has always been the action oriented camera and with the global shutter the A9 III has taken this to a new level. The A7C series offers full frame at a very small size. If I were to quibble with Sony's lineup it would be with the A7 IV, adding more MP to that version without really increasing sensor scan speed wasn't very competitive, IMO. I like what Nikon did with the Z6 III by deciding not to increase resolution but instead adding a partially stacked sensor to increase sensor scan speed. Still from top to bottom Sony has a very solid lineup of cameras and I see no reason for that to change any time in the foreseeable future....Show more →
I know the a7S III is getting kind of old now, but is there still a point in this line now that the a9 series exist? The sensor readout speed is only 1/48 of a second. It hardly screams fast. For videos, isn't the a9 better? I suppose if Sony still wants the ultimate low light sensor, I guess this sensor should still be improved. Hopefully, Sony will further improve the readout speed and maybe make this a stacked sensor. Imagine an a7S IV with a stack sensor at 12 MP. That would be awesome!
p.2 #13 · The sensor read-out times on the A7Cxx cameras?
lsquare wrote:
I know the a7S III is getting kind of old now, but is there still a point in this line now that the a9 series exist? The sensor readout speed is only 1/48 of a second. It hardly screams fast. For videos, isn't the a9 better? I suppose if Sony still wants the ultimate low light sensor, I guess this sensor should still be improved. Hopefully, Sony will further improve the readout speed and maybe make this a stacked sensor. Imagine an a7S IV with a stack sensor at 12 MP. That would be awesome!
Kind of old, but current model?
A7SIII uses a 48mp sensor. So it's readout speed for video of 1/113 is impressive.
Aug 26, 2024 at 08:47 AM
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p.2 #14 · The sensor read-out times on the A7Cxx cameras?
lsquare wrote:
I know the a7S III is getting kind of old now, but is there still a point in this line now that the a9 series exist? The sensor readout speed is only 1/48 of a second. It hardly screams fast. For videos, isn't the a9 better? I suppose if Sony still wants the ultimate low light sensor, I guess this sensor should still be improved. Hopefully, Sony will further improve the readout speed and maybe make this a stacked sensor. Imagine an a7S IV with a stack sensor at 12 MP. That would be awesome!
Sony could have made this a stacked sensor long ago, but if you look at the measurements for video here:
You will see that all 4K and 1K modes are possible with this camera and have sensor readout speeds of at least 1/113 of a second. Rolling shutter is not really an issue with this camera for video. The 1/48 is just for stills. With video sensor scan speeds that fast, I don't think the camera really needs a stacked sensor. The quality of the video that it produces is also excellent for this camera. As long as you can live with 4K, and almost everyone can, it is a great choice for video, IMO.
Aug 26, 2024 at 11:54 AM
Steve Spencer Offline • • • • • • • Upload & Sell: On
p.2 #15 · The sensor read-out times on the A7Cxx cameras?
Choderboy wrote:
Kind of old, but current model?
A7SIII uses a 48mp sensor. So it's readout speed for video of 1/113 is impressive.
The A7s III uses a 12MP sensor, but its readout speed for video across all modes of 1K and 4K shooting is still impressive, IMO.
p.2 #16 · The sensor read-out times on the A7Cxx cameras?
Well I only shoot stills but have an array of Sony cameras with different sensor readout speeds.
Based on what I’ve seen here my A1 and A7RV/A7CR really should cover me but I guess I should not us my RV/CR bodies for my grand kids and their rapid movements. I admit on everything other than the A1 I’ve resigned my self to only using mechanical shutter. Is only an EFCS shutter on the compact C bodies an issue? Also wondering if it was smart to get the A7C2 and take advantage of its slightly faster readout for any faster stuff when I don’t have an A1 packed for travel?
And what sensor speed is a A6700 which also has a full two curtain mechanical shutter?
Let’s heat remove the cover glass and inspect the pixels under a 50x microscope objective. It turns out this sensor was a 2×2 binning design. This means IMX510 actually has a 48MP native resolution. The RGGB Bayer pattern is spread across a 4×4 grid. After sensor readout, the four pixels in each pf the same color are then combined digitally to give one pixel before sending out on the SLVS-EC interface.
Aug 26, 2024 at 10:07 PM
Steve Spencer Offline • • • • • • • Upload & Sell: On
p.2 #20 · The sensor read-out times on the A7Cxx cameras?
Let’s heat remove the cover glass and inspect the pixels under a 50x microscope objective. It turns out this sensor was a 2×2 binning design. This means IMX510 actually has a 48MP native resolution. The RGGB Bayer pattern is spread across a 4×4 grid. After sensor readout, the four pixels in each pf the same color are then combined digitally to give one pixel before sending out on the SLVS-EC interface.
I actually have seen those reports, but what is the point in calling it a 48 MP sensor when the sensor is designed to always bin the four into one pixel? It can't be used as a 48 MP sensor, so why call it that? Now if they had made the sensor so that it could be used as a 48 MP sensor in some situations and a 12 MP sensor in other situations, then I think it would make sense to call it a 48 quad bayer sensor. The point of a quad bayer sensor is that it can be used as either a sensor with X MP or four pixels can be binned at each site for a sensor with .25 X MP. That is not the case with this sensor. It can and only is used as a 12 MP sensor, so let's call it what it is a 12 MP sensor. Those sensors are permanently binned so they function as one pixel not four.
