Joerg V

Lives in Germany Germany
Joined on Jan 23, 2012

Comments

Total: 88, showing: 1 – 20
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On article Canon EOS M5 added to studio scene comparison tool (45 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 (162 comments in total)

A very interesting article, thanks for the pointer.

Link | Posted on Dec 3, 2016 at 10:15 UTC as 37th 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).

Tehe!

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

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 04:42 UTC as 42nd comment | 3 replies
On article Special K? Pentax K-1 Review (2660 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 390th comment
On article Pentax K-1 Pixel Shift Resolution: Updated Field Test (211 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?

Dave

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 (224 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 35th comment | 2 replies
On article Merry Christmas II you: RX1R II sample gallery updated (138 comments in total)
In reply to:

ottonis: At all those people disliking the IQ of the RX1mII:

According to sonyalpharumors, Sony has reportedly halted RX1m2 production due to (yet unknown) issues.
Stevehuffphoto.com reports stellar IQ and points out that there might be some serious sample variation issues, if other users experience bad performance issues.
That being said, the current results may NOT be reflecting what the RX1R2 is truly capable of, but rather be skewed by some technical problems that may vary between different body samples.

I am pretty sure that Sony whould have contacted dpreview if the images we see would wildly differ form the expectancy.

Link | Posted on Dec 20, 2015 at 16:00 UTC
In reply to:

Chaitanya S: wondering how much it is going to cost.

Knowing Sigma I am much more wondering how much it does weigh. Maybe this will be the first filter to break the 1kg barrier. ;)

Link | Posted on Dec 16, 2015 at 08:46 UTC
In reply to:

Joerg V: It looks like the lens has not been designed with landscape photography in mind (high amount of fringing and pretty bad corner performance). What a bummer given the great dynamic range.

This is a 35mm f/2 prime lens we are talking about. Fixed lens. f/2. On a 3k camera.

> "tack sharp edge to edge"

No. Just no.

Link | Posted on Nov 24, 2015 at 10:54 UTC
In reply to:

Joerg V: It looks like the lens has not been designed with landscape photography in mind (high amount of fringing and pretty bad corner performance). What a bummer given the great dynamic range.

I am referring to these images:

http://www.dpreview.com/sample-galleries/9715246082/sony-cyber-shot-rx1r-ii-sample-gallery/5463951162
http://www.dpreview.com/sample-galleries/9715246082/sony-cyber-shot-rx1r-ii-sample-gallery/8897777058

Both images have been made at "landscape settings" (iso 100, f/6.3).

Don't you agree that those images do show high fringing and bad corners?

Link | Posted on Nov 24, 2015 at 08:12 UTC

It looks like the lens has not been designed with landscape photography in mind (high amount of fringing and pretty bad corner performance). What a bummer given the great dynamic range.

Link | Posted on Nov 24, 2015 at 05:58 UTC as 22nd comment | 12 replies
In reply to:

qwertyasdf: To cater to the current generation, Rishi, where's your selfie?!

Check the eye of the model in picture 2 :)

Link | Posted on Nov 3, 2015 at 20:59 UTC
On article Studio tests and samples: Leica SL (beta) (754 comments in total)
In reply to:

marcio_napoli: I already know I will get tons of don't feed the troll replies. I can't help it, my fingers are already typing it.

Yes, this Leica has a bit lower performance here and there compared to Sony sensors. Whatever. I really mean it, whatever

At this level of IQ, it's already possible to produce world class images. To be honest, it'd be possible to produce world class images with cameras 10 years older than this one.

So I call this obssession with comparing sensor A vs B a bit an@l. All of then are good enough.

The 10k pricetag is not because of a sensor. It's because of Leica lenses, and the Leica experience.

To experience something that's truly unique is something very underated in a gear forum, but I think it should be the opposite

You're paying for a different experience, not for a "better" sensor.

Besides, you guys get so defensive about IQ. You should try digital medium format someday.

After you try it, you'll see how pointless is defending FF sensors IQ of any brand, anyway.

What exactly is that "Leica experience"?

Experiencing an empty wallet?

Link | Posted on Oct 29, 2015 at 08:22 UTC

Initial thought on seeing the second image: Oh, Sigma has done it again. So that is the quattro successor...

Link | Posted on Sep 8, 2015 at 04:57 UTC as 114th comment
On article Readers' Showcase: Zhi Yuen Yap (60 comments in total)

Yay @ 1, 3, 11... :)

Link | Posted on Aug 23, 2015 at 15:57 UTC as 28th comment
On photo a7RII-RS-DSC08410-Edit-ISO_100 in dpreview review samples's photo gallery (12 comments in total)

Look at picture, meeeh! => Canon 11-24.
Look at picture, wooow! => Zeiss Batis 25 or 85.

I don't own any Zeiss glass... maybe time to reconsider?!

Link | Posted on Aug 8, 2015 at 14:55 UTC as 7th comment
On SampleImage:0507367931 (12 comments in total)

Look at picture, meeeh! => Canon 11-24.
Look at picture, wooow! => Zeiss Batis 25 or 85.

I don't own any Zeiss glass... maybe time to reconsider?!

Posted on Aug 8, 2015 at 14:55 UTC as 7th comment
On a photo in the Sony Alpha 7R II Samples Gallery sample gallery (15 comments in total)

Look at picture, meeeh! => Canon 11-24.
Look at picture, wooow! => Zeiss Batis 25 or 85.

I don't own any Zeiss glass... maybe time to reconsider?!

Link | Posted on Aug 8, 2015 at 14:55 UTC as 7th comment
Total: 88, showing: 1 – 20
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