thx1138

Lives in Australia Sydney, Australia
Works as a Senior Researcher - Canon Australia
Joined on Jul 17, 2004
About me:

Canon 1D X, 5D III, 17-40 f/4L, 45 f/2.8 TS-E, Sigma 50 f/1.4 Sigma 85 f/1.4, 135 f/2L, Canon 100 f/2.8L IS macro, 70-200 f/2.8L IS mk II, 300 f/2.8L IS, 100-400 f/4-5.6L IS, 500 f/4L IS mk II, 1.4x TC III, 2x TC III, 600 EX, Sigma 24 f/1.8 EX, Canon 24-7 f/2.8 mk II, Sigma 150 f/2.8 Macro EX HSM DG

Comments

Total: 1245, showing: 21 – 40
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While I have no interest in a 35 f/2.8 normally, the dimensions and weight are crazy small if the optics are good. Maybe if the reviews on the A7RII look good it would be a nice little stealth lens. But I could live with a little bigger and f/2. The mfd is poor however, 0.12x is class trailing for sure.

Link | Posted on Jun 6, 2017 at 01:44 UTC as 46th comment

Gosh good to see the smaller bezels even if it took them far too long to deliver them. I'm interested in the 10.5" and stylus, maybe around Xmas I'll replace my old iPad Air.

Link | Posted on Jun 6, 2017 at 01:38 UTC as 30th comment | 6 replies
In reply to:

new boyz: So Panasonic reverse-engineered EF lens protocol like Sigma/Tamron?

The EF mount patent ran out a few years ago, why do they have to reverse engineer anything now?

Link | Posted on Jun 3, 2017 at 12:26 UTC
On article Sony a9 Full Review: Mirrorless Redefined (2675 comments in total)

Patently false the A9 is slightly cleaner than 1DXII at high ISO. D5 is best, but 1DXII up to the what I'd say is highest usable ISO of 25600 is lineball, but with tighter chroma. Beyond that the Sony falls apart faster but both are poor, Sony's chroma gets blotchier. And despite 4MP less it shows no less detail at all, possibly the Sony lens is softer

Link | Posted on Jun 2, 2017 at 06:21 UTC as 230th comment
In reply to:

dash2k8: I myself don't care about DR on the newest cameras anymore because for my purposes, anything over 12 stops is good enough. I almost never take pictures in extreme situations (landscape?) so the DR in any new camera will most certainly be enough. Honestly, is there any studio photographer here who has ever needed more DR than what their current cameras offer? Obviously in this age "more is better" but for me it's already enough.

He means the DxO DR figures.

Link | Posted on Jun 2, 2017 at 06:11 UTC
In reply to:

Dante Birchen: Curved sensors will make all legacy glass obsolete. That most be a lens makers wet dream.

The curvature can be changed on demand, so if you have legacy glass you leave the sensor in flat mode, and non-legacy glass should send parameters to camera on how much curvature needs to be adjusted. You can release new glass in a leisurely fashion, knowing current glass is still fine.

Link | Posted on Jun 2, 2017 at 01:30 UTC
In reply to:

zodiacfml: Intriguing that Microsoft has a take on this one. Probably they find Sony's implementation with many difficulties, thus, only producing a single product from 2014, the selfie camera.

Why are you mentioning Sony, they are not the first or only ones working on curved sensors

Link | Posted on Jun 1, 2017 at 22:54 UTC
In reply to:

rfsIII: Could someone elaborate on "a benefit at the center, possibly stemming from better acceptance of light from the edge of the lens."
What is the benefit?
And aren't the light rays at the edge of the lens projected onto the edges of the sensor?

It's simply the case that projecting a spherical surface onto a flat surface has to introduce non-linear distortion. The lenses are then much more complicated to design as they have to compensate for this. If you could project the output of the lens onto a spherical surface that eliminates a lot of this complexity.

Canon's lens group have been asking the sensor group for curved sensors for a very long time and Canon also has patents on achieving this.

Link | Posted on Jun 1, 2017 at 21:25 UTC

Why not launch two systems, otherwise identical except for the mount. It'll take many years for them to build up new line of native mount lenses, so release legacy mount version first and then when they have at least 3-4 of the most important lenses ready also relase new mount version. You can use legacy glass with adapter and if you aren't happy with the small lens line-up buy the legacy mount version, it'll be thicker and a few grams heavier but still much lighter than a DSLR. After 4-5 years you can stop making legacy mount version altogether.

Link | Posted on May 24, 2017 at 23:59 UTC as 25th comment

The little sensor that just won't die, it's like a baddy from a horror movie, no matter how many times you shoot them they just keep on getting up.

Time to drive a stake through the heart of the beast once and for all.

Link | Posted on May 24, 2017 at 23:51 UTC as 31st comment | 3 replies
In reply to:

Hellstrom: $2700 for the 1TB option. Ouch.

Surface pro 1TB, 16GB RAM runs well over $4K in Australia. They are smoking crack.

Link | Posted on May 24, 2017 at 03:08 UTC
On article Sony a9: more speed, less dynamic range (666 comments in total)
In reply to:

Azimuth46: That's really a bad weak point from Sony that I didn't expect... :(

Sony cameras have always been those with some sort of footnotes in the specs! :(

but from a 5K £$€ camera this is pretty disappointing , also because it's pretty clear to me that most of the outstanding performances this camera can offer are strictly related to its sensor's readout speed, and I'm NOT talking of 20fps.

So even considering the chance of an A9R with a 40something MP would NOT have these quickness in operations... :(

"The somewhat limited dynamic range will NOT affect the results from 100% of the photographers who will use this camera for sports/action/wildlife or other kind of real world photography.

Unless of course it was a Canon sensor and Canon users would be hiding under a rock lest they get attacked on all fronts for such a crap sensor.

It's quite pathetic to see the selective memory loss of Sony fanboys. Even now the 13.4 EV DR of the 5D4 is considered pathetic, A7RII utterly destroys it. That sort of insanity is a hallmark of dpreview.

A9 will be perfectly fine IQ wise unless of course Sony fanboys finally stop needing to push shadows 6 stops.

Link | Posted on May 19, 2017 at 07:25 UTC
On article Sony a9: more speed, less dynamic range (666 comments in total)
In reply to:

Manfred Bachmann: i just wonder if it could be an adobe penalty also, because in capture one the image looks better to my eyes.

ACR is really trailing badly these days. I'm using C1 10 Pro and DxO 11 more and more, and they do a much better job in general. Why wont dpreview at least explain why they are using ACR when it's clearly inferior today. The process engine hasn't been changed in 5 years, the NR is showing it's age, DxO PRIME destroys it, C1 PRO and DxO have much better lens profiles, can extract better detail and C1 Pro has better colours, and seems nicer even with defaults.

Link | Posted on May 19, 2017 at 07:18 UTC
On article Sony FE 12-24mm F4 G sample gallery (60 comments in total)
In reply to:

chshooter: Doesn't look that sharp to me. Especially the photo of the terrace towards the end of the series looks quite soft for a shot even at f4. Other shots stopped down don't look much better. Little details are not that clear and detail is everything in landscape photography

Nothing really sharp anywhere in the frame. A9 missed focus a lot of times, none of the action shots were that sharp. Looks consumer grade quality, must have been fairy dust sprinkled on the MTF's. The sunstars are pretty bad too. If you can't get a truly sharp shot on a 24MP FF then you're going to be in a world of pain on the A7RII.

Link | Posted on May 18, 2017 at 06:29 UTC
In reply to:

panther fan: So now Sony has:

Wide Angle zoom:

12-24 F4 G

16-35 F4 Sony/Zeiss OSS

16-35 F2.8 GM

Midrange zoom:

28-70 F3.5-5.6 OSS

24-70 F4 Sony/Zeiss OSS

24-70 F2.8 GM

24-240 F3.5-6.3 OSS

28-135 F4 G PZ OSS

Tele zoom:

70-200 F4 G OSS

70-200 F2.8 GM OSS

70-300 F4.5-5.6 G OSS

100-400 F4.5-5.6 GM OSS

Wide angle prime:

18mm F2.8 Batis

21mm F2.8 Loxia

25mm F2 Batis

Medium wide angle:

28mm F2

35mm F1.4 Sony/Zeiss

35mm F2.8 Sony/Zeiss

Standard:

50mm F1.8

50mm F2.8 Macro

50mm F2 Loxia

55mm F1.8 Sony/Zeiss

50mm F1.4 Sony/Zeiss

Portrait:

85mm F1.8

85mm F1.8 Batis OSS

85mm F1.4 GM

90mm F2.8 Macro OSS

100mm F2.8 STF GM OSS

135mm F2.8 Batis OSS

And all that complem­ented by

Samyang 14mm F2.8 AF

Samyang 35mm F2.8 AF

Samyang 50mm F1.4 AF

I think we can say that not many lenses are missing

Ton of lenses missing especially 200mm+. That line is less impressive considering how much duplication their is in some of those FL. Missing lenses:

17/24/(35-45) TS-E
150/(180 or 200 macro)
200 f/2
300/400 f/2.8
500/600/4
800/5.6
200-400 f/4
400 f/4
400 f/5.6
150-600 f/5.6

Line up is solid now in the UWA to medium tele.

Link | Posted on May 18, 2017 at 02:22 UTC
In reply to:

bilcobarnes21: I would be really Intreasted to know from any Sony Pro lens users who have previously or along side used traditional SLR brand top end optics how they rate against one another (focus speed, accuracy, performane etc)
Not just responses from fanboys would be nice and probably surprising .

I use the 24-70 f/2.8L II on the 5DsR and the glas is still capable of handli8ng that resolution, the detail I get for landscape shots is amazing. AT this level all these high end lenses are stellar.

Link | Posted on May 18, 2017 at 02:08 UTC
In reply to:

Astrotripper: Wow, $2200 for a lens and it's not even weather resistant?

Well the Canon 1 series uses real gaskets around buttons, and can be used in pretty miserable conditions safely and some of their lenses have o-rings around rear moust and when used with filter are fairly moisture resistant, but if it's truly rainign I would use a rainjacket for body and lens no matter how good they claim the sealing, these aren't IP rated devices as Alex says. But Sony cleary offers inferior level of protection compared to the equivalent Canon, the 16-35 L III has seals throughout the lens and is clearly marketed as dust and mositure resistant and costs the same amount.

Link | Posted on May 18, 2017 at 02:06 UTC
In reply to:

Richard Kwon: Does this mean that we can't complain about FE mount doesn't have enough lenses anymore??? That's a bummer!

Yeah where's my 300 f.2.8 FE, 400 f/2.8 FE, 500 f/4 FE, 600 f/4 FE, 800 f/5.6 FE, 200-400 f/4 FE, 200 f/2 FE and one budget 150-600 /f4-5.6 FE for a start. Also we need TS-E lenses and some more macros (150-200mm) , then they will have good line-up. They are pretty good below 200mm now, so things have improved greatly.

Link | Posted on May 18, 2017 at 01:55 UTC
In reply to:

Krich13: Where can we see its MTF charts?

It doesn't need to be as good as the Canon, it just needs to be as good or better than the SIgma in my opinion. Given the small size I'd happily live with perfomance in the Sigma range, any better is a bonus. UWA are the only real lenses that benefit from mirrorless design, we see huge size and weight advantage in this case.

Link | Posted on May 18, 2017 at 01:52 UTC
In reply to:

crsantin: Glad they are adding lenses to the system but I can't afford either one of these lenses. Oh well.

Good to see mroe lenses but alas not the superteles they urgently need, 300/400 f/2.8 and 500 or 600 f/4 need to be out the door befoire years end.

Link | Posted on May 18, 2017 at 01:47 UTC
Total: 1245, showing: 21 – 40
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