Joerg V

Lives in Germany Germany
Joined on Jan 23, 2012


Total: 100, showing: 1 – 20
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On article CP+ 2018: First Look - Sony 400mm F2.8 G Master (414 comments in total)

The lower end's lens cap seems over engineered. Oh wait...

Link | Posted on Mar 2, 2018 at 16:29 UTC as 44th comment

The 105 should be called 'the Einstein lens'.

Whenever such a lens is assembled, LIGO will detect a black hole merger.

The lens is held together by gravity alone (no screws or glue needed) and has at least two 50mm arts circleing in stable orbits around it.

Link | Posted on Mar 1, 2018 at 19:09 UTC as 70th comment | 2 replies
In reply to:

turretless: Let Sony bashing begin! Muhahahaha!!!

Actually this is Sony splashing...

Link | Posted on Nov 9, 2017 at 05:42 UTC
In reply to:

Franz Weber: Does it have red eye reduction?

dim the display

Link | Posted on Oct 25, 2017 at 13:33 UTC
On article Nikon D850 added to studio scene comparison (447 comments in total)

The studio scene needs much more etchings and banknotes. :)

Good to know that there is yet another camera that I will never be able to max out.

Link | Posted on Sep 29, 2017 at 14:00 UTC as 38th comment
On article Nikon D850: First full-res sample images (345 comments in total)
In reply to:

JeanPierre Thibaudeau: Yes, fantastic but don't forget, these samples come the original seller itself, Nikon Japan. They're made to please, to sell. My 2 cents.

It is not uncommon that preproduction images coming from the seller look aweful. These look awesome!

We are going to see 46mp brick walls soon enough. :)

Link | Posted on Aug 24, 2017 at 22:05 UTC
In reply to:

RUcrAZ: Thanks for the warning! 44 minutes, are you serious? I've graduated from 20-minute color slide presentations, to 5 minute presentations, to seminars: "If you can't get your point across in 3 minutes you've failed", to 30 second commercials. And even shorter.
However informative it may be, it's....out of...time. Oops I wrote too much already!


Link | Posted on Aug 23, 2017 at 17:39 UTC
In reply to:

Satyaa: First a dog chews a DSLR. Now a tiger chews this.

Is Nikon trying to prove something? What is next?

I know that both these were from individuals - not Nikon sponsored - but still too much coincidence.

Next on DPR: Godzilla attacks a D5... and loses.

Link | Posted on Aug 14, 2017 at 07:51 UTC

The images show a wild mix of good quality (mostly the center where all lenses "overlap") and very mushy (corners) regions. This is visible even if downsampled to 1/4 of the original size and gives an unpleasently inconsistent look. But the technology is extremely promising. A 16x 28mm version of this would deliver some serious quality.

Link | Posted on Aug 2, 2017 at 20:05 UTC as 41st comment

Still waiting for the answer to the question "will it blend?".

Link | Posted on Jul 7, 2017 at 08:34 UTC as 19th comment | 1 reply

I am waiting for the T-Rex edition.

Link | Posted on Jun 27, 2017 at 10:10 UTC as 19th comment
On article Things we found at CP+ 2017 which had been cut in half (89 comments in total)

Pondering if #15 features five elements in three groups or three elements in two groups?

Link | Posted on Feb 26, 2017 at 18:28 UTC as 20th comment
On article Canon EOS M5 added to studio scene comparison tool (87 comments in total)
In reply to:

cj83: Don't think it fair that the sony is using the 55 1.8, while the canon m5 is using the 50 1.4 that isn't really sharp when being compared.

I could image two sensible tests:

(a) Use the best lens available for the mount

(b) Compare the ROIq (return of image quality) at a *fixed amount of money* (maybe at several prices). If we fix the amount at 1400€ you could compare a Canon M5 (1100€) with a decent lens (I have no idea what would be the best M lens for 300€) to a M3 (400€) + mount adapter (100€) + Sigma 50mm Art (650€). Same for Sony: 6300 + so-so lens vs. 6000 + Zeiss lens.

Link | Posted on Dec 9, 2016 at 10:35 UTC
On article Lensrentals tears down the Nikon 105mm F1.4 (157 comments in total)

A very interesting article, thanks for the pointer.

Link | Posted on Dec 3, 2016 at 10:15 UTC as 39th comment
On article Phase One XF IQ3 100MP update adds electronic shutter (22 comments in total)

And even this grip has more dynamic range than my current gear. :(

Link | Posted on Oct 3, 2016 at 15:12 UTC as 4th comment
In reply to:

Joerg V: Thoughts:

a) Darn. Kidney already sold for D800 + lenses...
b) X1D's IQ is woohoo.
c) I would love to see some landscape images (taken from the window of my apartment).


Link | Posted on Jul 7, 2016 at 09:11 UTC


a) Darn. Kidney already sold for D800 + lenses...
b) X1D's IQ is woohoo.
c) I would love to see some landscape images (taken from the window of my apartment).

Link | Posted on Jul 7, 2016 at 04:42 UTC as 42nd comment | 3 replies
On article Pentax K-1 Review (2663 comments in total)

Pixel shift surely is amazing. Wow!

The studio scene using raw at ISO 100 looks a tiny tiny bit worse than the D800 (not even E) despite the K-1 not having an anti-aliasing filter. Do we see the results of a not-so-great lens here?

Link | Posted on Jul 5, 2016 at 19:38 UTC as 406th comment
On article Pentax K-1 Pixel Shift Resolution: Updated Field Test (209 comments in total)
In reply to:

spencerda: Forgive me if these questions have been answered.

1) Can the pixel shift feature be translated in numbers as far as increase resolution vs the 36mp sensor in standard mode if so are there any formal numbers?

2) Does the crop mode which I understand gives 15mp surport pixel shift?


A Bayer sensor has roughly 65% of the resolution of a full color sensor (the number varies a bit depending on the demosaicing algorithm). Pixel shift is *at most* as good as a full color sensor (you will lose resolution due to object/camera movement, not 100% perfect shifting etc.) so the maximum *Bayer* resolution of pixel shift is ~50% higher then the Bayer pixel count. A K-1 pixel shift image on a completey static scene should rival that of a 55 MP full frame sensor. But then there is diffraction, movement etc.

The dynamic range benefit of pixel shift is not a real plus in my opinion. Exposure bracketing captures a much higher dynamic range (with all the issues arising from object movement).

Link | Posted on Jun 5, 2016 at 11:19 UTC
On article Looking Sharp: A focus stacking tutorial (223 comments in total)

I am torn between "wow" and "weird".

The final image is mesmerizing but my brain (trained to find the best focussing distance to get the best perceived overall sharpness) screams "does not compute".

Link | Posted on May 30, 2016 at 10:16 UTC as 37th comment | 2 replies
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