tn1krr

Joined on Nov 3, 2012

Comments

Total: 13, showing: 1 – 13
In reply to:

Robjwilli: Good for them. Not exactly revolutionary though unless you’re heavily into video. For hi-speed shooting give me the 5 year old Sony A9 with stacked sensor anytime.

Patents are only a small part of high end sensor manufacturing; Canon has had BSI sensor patens for years too, but they are yet to make one. Sony has invested billions and billions over the years on sensor fabs to get where they are now on terms on manufacturing capability and making the stacked sensor for A9 was a big investment/leap (the bigger sensor size one manufactures from latest tech the worse yield one gets) for them; they have not mass-produced stacked sensors on size bigger than 1" other than the one in A9/A9II.

We yet have no details on the 8K video (Nikon D850/Z7 has 8K timelapse video...). There is really no reason to expect generational leap in sensor tech based on specs in open so far.

Link | Posted on Feb 13, 2020 at 11:32 UTC
In reply to:

Robjwilli: Good for them. Not exactly revolutionary though unless you’re heavily into video. For hi-speed shooting give me the 5 year old Sony A9 with stacked sensor anytime.

I think it is safe to assume the full sensor readout speed on the R5 is about the same as the on in 1DXIII (1/60 secs), at best. With higher reasolution it is propably slower. That means the 20 fps liveview shooting is pretty useless for fast action shooting due to rolling shutter. A9 is way faster at 1/160 secs. A9 also has no blackout EVF with minimal lag and nearly 90% of sensor time available for AF/EVF updates. A camera with significantly slower sensor readouts cannot accomplish this. One does not need mechanical shutter in A9 outside studio/flashes, that is the beauty of of superfast stacked sensor.

R5 looks like a great camera, but it will compete with A7RIV and Nikon Z7 etc. and is way more competitive than 1st gen R-cameras. But nothing so far tells it is a world beater either. It is still likely behind in dynamic range etc. Unless Canon has bought Sony Exmors sensors into these camera.

Link | Posted on Feb 13, 2020 at 10:45 UTC
In reply to:

mick232: For mirrorless, there is already an abundance of wide angles, portrait primes and nifty fifties. But we are still lacking in the long tele department. When will manufacturers react to this?

I do not think so. I'm a long time Sony A7-series user and it has always been the case that when adapting lenses the teles are worst; instead of thinking about "AF improvements" I think it is the case that getting good enough performance from a long DSLR tele lens design is near impossible outside bright daylight (where PDAF totally dominates the hybrid focusing). For example my old Sony 70-400 SSM A mount lens was a very very good design optically (at 400 mm it betters the benchmark of Canon 100-400 II) yet the AF performance was miniscule in all-sony adaptation chain unless one used it in bright daylight; my current GM 100-400 runs circles around the adapted 70-400 and is very usable for even even indoors events.

If you are gonna market lens like 70-200/2.8 there is certain expectation of the performance level of the AF (indoor sports etc.) and I'm not at all convinced that a DSLR lens design can get you there.

Link | Posted on Feb 20, 2019 at 13:22 UTC
In reply to:

mick232: For mirrorless, there is already an abundance of wide angles, portrait primes and nifty fifties. But we are still lacking in the long tele department. When will manufacturers react to this?

Actually native mirrorless long teles are very different in design from their DSLR counterparts. Sony GMs (100-400, 70-200, 400) have multiple focus groups and multiple focus motors (even of different type) to optimize the functionality for hybrid focus where small movements & fast direction changes are needed. Same designs apply to faster Olympus teles.

Link | Posted on Feb 20, 2019 at 12:48 UTC
On article Sony a7R Mark III review (1248 comments in total)
In reply to:

tn1krr: Great review, good stuff. One thing mentioned though that seems to be incorrect. The review claims that Pixel Shift does not support any strobes. Sony A7R III Pixel Shift guide linked below disagrees. Even the adjustable delay between Pixel Shift shots is said to be there so that one can gives strobes enough time to reload. The Flash sync in 1/13 secs due to electronic shutter "speed" eg. sensor-readout time.

http://helpguide.sony.net/ilc/1710/v1/en/contents/TP0001552918.html

The minimum configurable delay between the exposures is obviously there for mechanical movement to settle or some other technical reason. Any longer than that minimum is for external reasons like flash recharge; since any scene lightning etc. changes are gonna make combining 4 exposures harder and artefacts more likely to appear adding any delay over "system minimum" is a bad idea.

I think it is unreasonable to expect m43 delays between the pixel shift shots, way more mass moved in 4x larger FF sensor.

Link | Posted on Nov 22, 2017 at 18:30 UTC
On article Sony a7R Mark III review (1248 comments in total)
In reply to:

Mais78: "For a start, there's the large 1280 x 960 pixel viewfinder, which gives either a highly detailed or rapidly refreshed one, depending on whether it's run in standard or high refresh rate mode."

Are you sure? isn't the difference just battery usage?

There are two different refresh rates "Standard" and "High". "High" lowers resolution for increased refresh rate. Per A7R III Help Guide

http://helpguide.sony.net/ilc/1710/v1/en/contents/TP0001212167.html

Link | Posted on Nov 22, 2017 at 16:55 UTC
On article Sony a7R Mark III review (1248 comments in total)
In reply to:

tn1krr: Great review, good stuff. One thing mentioned though that seems to be incorrect. The review claims that Pixel Shift does not support any strobes. Sony A7R III Pixel Shift guide linked below disagrees. Even the adjustable delay between Pixel Shift shots is said to be there so that one can gives strobes enough time to reload. The Flash sync in 1/13 secs due to electronic shutter "speed" eg. sensor-readout time.

http://helpguide.sony.net/ilc/1710/v1/en/contents/TP0001552918.html

Lack of flash would be quite limiting for studio/still life etc. So this functionality makes a lot of sense and even the long sync speed does not matter much when/if you are in 100% control of ambient light.

Link | Posted on Nov 22, 2017 at 16:28 UTC
On article Sony a7R Mark III review (1248 comments in total)

Great review, good stuff. One thing mentioned though that seems to be incorrect. The review claims that Pixel Shift does not support any strobes. Sony A7R III Pixel Shift guide linked below disagrees. Even the adjustable delay between Pixel Shift shots is said to be there so that one can gives strobes enough time to reload. The Flash sync in 1/13 secs due to electronic shutter "speed" eg. sensor-readout time.

http://helpguide.sony.net/ilc/1710/v1/en/contents/TP0001552918.html

Link | Posted on Nov 22, 2017 at 16:22 UTC as 230th comment | 6 replies
In reply to:

sony shooter: As a Sony Shooter. This article show how hard it is to go from DSLR to a Mirrorless.

You haven't gotten into the menus to shut of image review, its obvious that you didn't spend time learning how to use focusing system such as focus locking, and most of all how to use the drive by wire focusing that is new with the Sony mirrorless cameras.

BTW it took me over a month to learn how to use Sony mirrorless coming from a Canon and Sony DSLR. its been rewarding yet difficult. Maybe you should give it a second shot after you learn the menus and functions.

Just my opinion.

The display quality propably has nothing to do with AF speed etc, but if you get screen lockups it sure does not help tracking acrobatic planes dancing on the sky with full throttle. This was with the original firmware with LA-E3 + 70-400SSM, I had a pile of 1-2 sec lockups and periods of very bad refresh (maybe like 3-4 fps) until I dropped from "high" to "standard" quality" (based on purely on a guess) Buffer was not full or anything and this happened several times.

Link | Posted on Nov 9, 2015 at 09:29 UTC
In reply to:

sony shooter: As a Sony Shooter. This article show how hard it is to go from DSLR to a Mirrorless.

You haven't gotten into the menus to shut of image review, its obvious that you didn't spend time learning how to use focusing system such as focus locking, and most of all how to use the drive by wire focusing that is new with the Sony mirrorless cameras.

BTW it took me over a month to learn how to use Sony mirrorless coming from a Canon and Sony DSLR. its been rewarding yet difficult. Maybe you should give it a second shot after you learn the menus and functions.

Just my opinion.

Article and Rishi's comments show that they understand the camera better than people suggesting irrelevant settings to be changed; like said Live View Setting Effect toggle does nothing in AF-C after initial acquisition.

Personally I've found that Display Quality "standard" works way better with A7R II + LA-EA3 + 70-400SSM2. I had lots of issues (bad refresh, long blackout) in airshow until I changed display quality from "high" to "standard". It is a bit pity that the test was shot with the slower focusing 1st gen 70-400, but other than that I see big isues in article, this is from someone with near 10K frames on varying conditions with A7R II.

The black and white characterizations are quite boring. I can well see the NFL game light levels, busy background being an issue, whereas in airshow (more light, clear background) with an SSM2 version I had nearly every frame out of 650 in focus like this

https://dl.dropboxusercontent.com/u/26280040/_DSC1606.jpg

Link | Posted on Nov 5, 2015 at 08:22 UTC
In reply to:

JRFlorendo: So basically this camera is for static subject only, in due time, Sony will figure out the right algorithm setup combined with DSLR lag, that day is coming sooner than later. The question is, will Sony bulk it up(ergonomics) for pros to have a comfortable 6+ of shooting.

I think there is area between "Pro sports" and "static subjects only" where A7R II works just great. I shot in an airshow back in august with A7R II + LA-EA3 + 70-400SSM2, meaning I used the current and way faster version of the lens used in this test. Pretty much every shot out of 600 or so was in focus, even those where planes were coming towards me on full throttle. Is this the best camera+lens for such use? Propably not (slow burst, some EVF blackout etc.), but worked way better than expected for me.

Link | Posted on Nov 4, 2015 at 14:43 UTC
On article A lot to Leica? Hands-on with the Leica SL (Typ 601) (1489 comments in total)
In reply to:

love_them_all: Metabones - please make an adapter for the SL lenses on the Sony (if it is possible). I am interested in the lenses but not the body. May be I'll just buy an aftermarket Leica name badge and glue it on top of the Sony LOL.

I heard Metabones is indeed coming out with an AF adapter to mount these lenses on Sony. Early adopter discount price is $4995. Wanna preorder?

Hope this doe not need smileys for everyone to understand...

Link | Posted on Oct 21, 2015 at 07:57 UTC

Not fully convinced the A7R II (have had one for a few weeks now) is using sensor-PDAF at those light levels. Maki-San pretty clearly stated the CDAF is there for low light in recent imaging resource interview. AF-C being slightly faster could be just due to fact that CDAF relaxes accuracy threshold needed for lock a bit.

As for "Aperture considerations", for ultra low light shooting put the "Live View Display" to "Setting effect off" and the lens remains fully wide open during AF-S at least until lock (just look inside the lens when stopping down, lens remains wide open). Same with MF, it helps alot, screen refresh is better + there is less noise with "Setting effect off" if one is shooting stopped down apertures. This was true even to older A7-series models, the new A7R II is indeed more agressive opening the Aperture even with "Setting Effect on".

But all in all, great article again and matches my own findings about low light AF. It is great improved over previous A7-models.

Link | Posted on Aug 20, 2015 at 13:57 UTC as 216th comment
Total: 13, showing: 1 – 13