Weia

Weia

Joined on Dec 2, 2011

Comments

Total: 25, showing: 1 – 20
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On DPReview recommends: Best smartphone cameras post (241 comments in total)

It would be nice to add to all the measure of the sensor (not all are mentioned) and the optical zoom range.

Direct link | Posted on Mar 30, 2015 at 10:30 UTC as 67th comment | 2 replies
In reply to:

Weia: Where can I find more about diffraction limits and sensor size? Fourthirds, APSc and full frame. Especially in macro.

DOF is independant of sensor size or pixel density, so I wonder why diffraction effects should depend on sensor size.
I need higher f-numbers because I mostly picture insects of 1-5 mm length. I've tested my Sigma apo 150 on my good old E3 and f/11 is mostly my choice. f/10 maybe is a little bit better, f/13 definitily is worse.

Direct link | Posted on Mar 26, 2015 at 10:48 UTC

Where can I find more about diffraction limits and sensor size? Fourthirds, APSc and full frame. Especially in macro.

Direct link | Posted on Mar 24, 2015 at 12:09 UTC as 13th comment | 6 replies
On Making 'Art': We go inside Sigma's lens factory article (192 comments in total)
In reply to:

brumd: Great article! It really helps me appreciate the amount of work and care that is put in making these lenses, not only Sigma, but in general.

It would be nice to be able to compare this production process with the Leica factory and their "handmade lenses": http://blog.leica-camera.com/leica-news/the-leica-manufacturing-process/

In what ways do these production processes actually differ?

"It really helps me appreciate the amount of work and care that is put in making these lenses, not only Sigma, but in general."
I was thinking the same. Every tiny part has been in someones hands, all lines and signs are printed or even drawn by hand...

Direct link | Posted on Mar 9, 2015 at 12:12 UTC
On CP+ 2015 Sigma Interview article (197 comments in total)

They love optics above all, it seems. Nice read.

Direct link | Posted on Mar 5, 2015 at 11:58 UTC as 33rd comment

Distortion quite much, always the difficulty with these focal distances.

Direct link | Posted on Feb 25, 2015 at 15:17 UTC as 20th comment
On Adobe celebrates 25 years of Photoshop article (366 comments in total)
In reply to:

Weia: I left Photoshop since the cloud version is the only one. Bye bye.

I meant: I stopped wanting updates!

Direct link | Posted on Feb 19, 2015 at 15:15 UTC
On Adobe celebrates 25 years of Photoshop article (366 comments in total)

I left Photoshop since the cloud version is the only one. Bye bye.

Direct link | Posted on Feb 19, 2015 at 12:02 UTC as 74th comment | 2 replies

The lenses are not the point I think. The M3 has some extra lenses, but for the rest DSLR and mirrorless have the same choice. So someone starting with choosing glass after that will not necessarily go for one or the other. An M3 with a 2.8/500 on a tripod for picturing birds can be a perfect choice, having a binocular in your hands and an eye on the tilted screen of the m3.

Direct link | Posted on Feb 11, 2015 at 16:23 UTC as 226th comment

Good news, I have been waiting for about this for a special goal.

Direct link | Posted on Feb 6, 2015 at 11:28 UTC as 28th comment
In reply to:

Peter Bendheim: Looks great - as an original M owner I think this will turn out to be an excellent go everywhere Canon, despite what all the haters say.

It's a pity that so many haters always spoil this forums...

Direct link | Posted on Feb 6, 2015 at 11:27 UTC
On 3,200MP LSST camera gets construction approval article (257 comments in total)
In reply to:

Frank_BR: Moore's Law states that the integration of transistors in a monolithic circuit doubles every 18 months or so. Assuming that sensor resolution doubles every two years, and considering that today's state-of-the-art is 50MP, it can be predicted that the sensors will reach 3200MB in 12 years, ie, 2027, only five years after launching the LSST.

And the size of the pixels must not be too small, noise... So Moore's law has nothing to do with high quality photography.

Direct link | Posted on Feb 3, 2015 at 12:33 UTC
On 3,200MP LSST camera gets construction approval article (257 comments in total)

The optics is one thing, the sensor another, but I think the software looking for changes every few days is far more important. The time lapse function so to say.

Direct link | Posted on Feb 3, 2015 at 10:20 UTC as 78th comment
On Have your say: Best Lens of 2014 article (119 comments in total)

The best? Otus. Not in the list and therefore no vote.

Direct link | Posted on Jan 6, 2015 at 22:21 UTC as 3rd comment
On Weird Science: Olympus BioScapes 2014 winners article (21 comments in total)

Number 9!!

Direct link | Posted on Dec 29, 2014 at 22:15 UTC as 8th comment

The old 7-14 is hard to beat, so hope it is equal.

Direct link | Posted on Nov 2, 2014 at 00:35 UTC as 66th comment | 5 replies
On Price released for Brikk's 24k gold Nikon Df article (389 comments in total)

Ultimately ugly...

Direct link | Posted on Oct 30, 2014 at 22:42 UTC as 180th comment
On Tiny fps1000 high-speed camera boasts 18,500fps article (137 comments in total)
In reply to:

Weia: Why those DOS-computer resolutions, why not 720p and 1080p?
And logic speeds like 500 or 1000 fps?

For time studies I would like logical frame rates. I use a simple Casio for athletic coaching, 120 fps mostly. Timing in 0.01 seconds would be nicer.

Direct link | Posted on Oct 9, 2014 at 16:43 UTC
On Tiny fps1000 high-speed camera boasts 18,500fps article (137 comments in total)

Why those DOS-computer resolutions, why not 720p and 1080p?
And logic speeds like 500 or 1000 fps?

Direct link | Posted on Oct 9, 2014 at 11:24 UTC as 49th comment | 2 replies
On 'See Impossible': Canon counts down to... something. article (1656 comments in total)

Hoping for an M2: APS-C, 24 megapixels, tiltable screen.

Direct link | Posted on Oct 6, 2014 at 17:04 UTC as 692nd comment
Total: 25, showing: 1 – 20
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