tesilab

tesilab

Lives in United States United States
Works as a Software Engineer
Joined on Feb 4, 2011

Comments

Total: 153, showing: 1 – 20
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On article Leica SL2-S initial review (454 comments in total)

If it "almost certainly uses the same sensor as the Sony a7 III", Yet the a7 III has phase detection dedicated pixels? That implies that micro-lenses and firmware alone can adapt a sensor to phase detection. Is that true?

Link | Posted on Dec 11, 2020 at 14:04 UTC as 53rd comment | 2 replies

They brag about how well seamless the color blending is, and yet they have a blindingly obvious seam in the forehead of each of their examples. Still looks like a bad makeup job.

Link | Posted on Jul 24, 2020 at 20:32 UTC as 4th comment
In reply to:

tesilab: This comparison fails to mention what was for me the most compelling X-H1 feature: an *extremely* quiet and well damped shutter mechanism. This obviates the need for an electronic shutter in most instances, which is useless in some lighting conditions. I considered buying this camera for the shutter alone.

Just checked this https://www.youtube.com/watch?v=udZaywgMSzk shutter comparison. I rented and enjoyed the X-H1, but have only read about X-T4. Aside from hearing praise of its sound, did not realize it was in the same league as X-H1.

Link | Posted on Jun 1, 2020 at 13:15 UTC

This comparison fails to mention what was for me the most compelling X-H1 feature: an *extremely* quiet and well damped shutter mechanism. This obviates the need for an electronic shutter in most instances, which is useless in some lighting conditions. I considered buying this camera for the shutter alone.

Link | Posted on Jun 1, 2020 at 02:36 UTC as 39th comment | 3 replies

It's safe to say, that if photography has ever had actual saints, then Lewis Hine was one.

Link | Posted on Feb 26, 2020 at 03:57 UTC as 5th comment
In reply to:

DotCom Editor: Big "sensor," probably very shallow DOF.

Finally something to satisfy us bokeh freaks!

Link | Posted on Jan 6, 2020 at 22:02 UTC
In reply to:

Sardonic G: If it doesn't have duel memory slots I'm not interested...

Actually I was about to ask about whether it has Eye-AF!

Link | Posted on Jan 2, 2020 at 20:32 UTC
In reply to:

LDunn1: As a UK National, what I really needed to know from Canon, was how we are supposed to pronounce the ‘R’ in Eos R.......

@Tourlou it is a joke on Nikon Z7/Z6 where Nikon instructed every to pronounce the letter Z as “Zee” (American style) vs “Zed” (UK and almost every other English-speaking country).

Link | Posted on Sep 5, 2018 at 12:27 UTC

Thank you Nikon for finally seeing the writing on the wall and making mirrorless FF a more competitive space.

It looks like a solid first effort. I’m sure that it’s going to give their existing user base a lot to think about. I’m also pretty sure that Sony is going to keep a very good percentage of their user base intact for at the next three years—a user base that just swelled considerably.

While the overall pace of technical improvements in mirrorless cameras has slowed down, I’m hoping Nikon, Canon will ultimately catch up, and start focusing on making mirrorless a better user experience.

Link | Posted on Aug 23, 2018 at 12:21 UTC as 76th comment
In reply to:

V Ahrlenz: Most every morning these past few weeks Sheriff Coltrane's been finding abandoned cars up on the road across Choctaw Ridge, with Sony mirrorless kits in the trunks, and the keys in the pants of suicide jumper's bodies layin' scrumpled up, busted, and bloodied on the gorge rocks down 'neath the Tallahatchee Bridge. Boss Hogg's been sayin' a lotta folks are going to have to leave outta these parts. Bo and Luke h'aint been seen nowheres lately, and Daisy's been sayin' she's only gonna be modelin' for Nikon shooters now that the news is out. I sure hope Dolly Parton comes back to sing at the county fair next summer, now that there's been this announcement. They did her first album cover with a Nikon! I mean, it's just the right thing, you know? Nikon. And Dolly's so gifted. We all can't wait. Some more lemonade, mister?

do you not mean Bobbie Gentry?

Link | Posted on Jul 26, 2018 at 22:24 UTC
In reply to:

panther fan: This opens up the larger question, why shoot the test scenes with different lenses at all? Not only for a single brand, but for all brands.

Chose a sharp lens with a long flange distance, like medium format lenses for example. Then fix it on a tripod in front of your studio scene, glue the focus fix and then just adapt all bodies to this. This should make brand comparisons much easier, especially with the same sensor size

@panther fan, This word, "very easily", I don't think it means what you think it means. Perhaps you have it confused with the word "theoretically".

But I agree that we have many of us gotten some sensational results with adapters, and the these results would be instructive if made available.

But you cannot impose your standard of "very easily" on the people making these tests. I think we are all going to have to live with more practical and somewhat less rigorous tests, though we all recognize their limitations.

Link | Posted on Jun 1, 2018 at 16:50 UTC
In reply to:

panther fan: This opens up the larger question, why shoot the test scenes with different lenses at all? Not only for a single brand, but for all brands.

Chose a sharp lens with a long flange distance, like medium format lenses for example. Then fix it on a tripod in front of your studio scene, glue the focus fix and then just adapt all bodies to this. This should make brand comparisons much easier, especially with the same sensor size

Then you will be at the mercy of adapters and their individual tolerances.
You will also receive unrepresentative quality of the camera due to designs intended for different optical stacks. Lensrentals and others have shown that the optical glass stack on Sonys, for example is accounted for in lens designs.

So while the desire to keep some parameters totally constant is laudable, it isn't totally practical, unless you double the number of tests to use both a best-available native lens and a "standardized adapted" lens.

Link | Posted on Jun 1, 2018 at 15:38 UTC
On article Tamron 28-75mm F2.8 for E-Mount Sample Gallery (220 comments in total)
In reply to:

(unknown member): Links later..but this new Tamron lens for Sony..has a major Flaw..Auto Focus. Will not Auto Focus..several you tube reviews have all had the same issues. Failure to Auto Focus.

@mgblack74 It appears to me the difference is with on-sensor pdaf. A green box verifies the focus, but the camera will issue precise movement instructions which may or may not yet be carried out before the shutter fires. This is an educated guess only.

I saw a report that changing shutter to focus priority would help. I always prefer that setting anyway to guarantee focus over timing.

There is also AF-C vs AF-S focusing difference in which AF-S will perform a final cdaf focus confirmation rather than trusting pdaf precision. (I’m talking stills here, I know there was a video discussion.)

Link | Posted on May 30, 2018 at 22:11 UTC
On article Tamron 28-75mm F2.8 for E-Mount Sample Gallery (220 comments in total)
In reply to:

Ruekon: The second sample showing a portrait of "the dpreview model" underlines impressively why we are still using dedicated cameras.

Compare with a smartphone portrait of the same person (iPhone X):
https://www.dpreview.com/articles/8898540845/does-sensor-size-still-make-a-difference

The difference shows up immediately, even if viewing in small size on a laptop monitor.

Yeah, it is a big difference. Looks like the Tamron gives models much longer beards.

Link | Posted on May 30, 2018 at 20:48 UTC
In reply to:

Bottom: Working distance at full extension is 26 cm.

https://www.dpreview.com/articles/7988525955/cp-2018-hands-on-with-sigma-105mm-f1-4-art-bokeh-master?slide=8

Ignore the title in the link the 70 mm is covered as an add-on.

off by over 200mm you are referring to the MFD not the working distance. Apparently around 56mm (see poster below with reasonable computation)

Link | Posted on May 24, 2018 at 19:25 UTC
On article This rare 14 karat gold ring doubles as a spy camera (63 comments in total)

Either they make this ring in a full frame version with IBIS or no deal.
I’ll also wager the manufacturer never issued any firmware upgrades whatsoever.

Link | Posted on Apr 27, 2018 at 18:23 UTC as 27th comment | 1 reply
In reply to:

Sannaborjeson: Way too complicated for me to ever use. However I really like what RNI have done with these profiles. The new Kodak Portra from RNI Films CC is insanely good. Second only to the real film.

Not to complicated to use. You will be missing out if you don't use profiles.
They are just very involved to create.
This is the ideal way to emulate film color emulations, for example.

Link | Posted on Apr 26, 2018 at 01:06 UTC

Maybe decide how to spell it and be consistent before publishing? You say Huracam in the beginning (which appears correct), then switch to Huracan with an 'n' almost everywhere. Embarrassing. [Oops I'm wrong, now I'm embarrassed, but this is the internet, and no one knows I'm only a dog]

Link | Posted on Apr 25, 2018 at 21:35 UTC as 26th comment | 3 replies
On article Sony a7 III Review (2193 comments in total)
In reply to:

wed7: Well done Sony.

I really want this camera, even though I can muster some cash to buy it, I may not have enough money to buy the lenses for this. :)

@Brendan1000 There is an superb affordable and tiny 35mm f/2 Zeiss Sonar for the Sony, it’s the RX1. Comes with an attached camera. RX1rii if you want 42mp, eye-af and variable AA filter.

Link | Posted on Apr 24, 2018 at 23:07 UTC
On article Sony a7 III Review (2193 comments in total)

It's a cruel twist of fate that shortly after Panasonic and Fuji each released some fabulously capable cameras that Sony manages to decisively take the wind out of their sails. I hope Sony will nevertheless steal some of their best refinements, 'cause that's what Sony needs right now. A little refinement.

Nothing touches the Panasonic touch interface--would it be so hard to steal page from them? Especially what's up the the lack of any touch shutter on the A7III/RIII/9?

The Fuji X-H1 shutter button and whisper quiet spring-suspended shockless shutter were almost enough to tempt me away from Sony. The A7III's (admittedly bigger) shutter still goes CLACK! And A7III silent shooting in an ever more LED lit word just doesn't cut it.

In the interim though, I just continue to hate Sony and buy all their compelling products.

Link | Posted on Apr 23, 2018 at 23:34 UTC as 230th comment | 13 replies
Total: 153, showing: 1 – 20
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