StevenE

StevenE

Lives in Canada Canada
Joined on Feb 24, 2009

Comments

Total: 88, showing: 1 – 20
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On What is equivalence and why should I care? article (1833 comments in total)
In reply to:

StevenE: Should also talk about the angle at which light strikes the sensor. In FF the angle at the corners is pretty extreme, causing light loss and vignetting. This becomes even more extreme in mirrorless cameras since the flange distance gets smaller, like Sony A7 series.
Smaller sensors may have an advantage in corners, especially in mirroless. I'd be interested in an in-depth analysis of the significance of sensor size, sensor design and flange distance

Pixels are actually three dimensional. They have depth as well as area, and my understanding is that some light fails to be detected if it reaches the pixel at too much of an angle, as would happen at the edges. This angle would be even greater with a short flange distance. Micro-lenses help to a point, but I don't think they fix the whole problem. Smaller sensors should allow the light to strike more directly from all parts of the lens. The research into curved sensors probably will address this as well.

Comments welcomed

Direct link | Posted on Jul 8, 2014 at 04:22 UTC
On What is equivalence and why should I care? article (1833 comments in total)

Should also talk about the angle at which light strikes the sensor. In FF the angle at the corners is pretty extreme, causing light loss and vignetting. This becomes even more extreme in mirrorless cameras since the flange distance gets smaller, like Sony A7 series.
Smaller sensors may have an advantage in corners, especially in mirroless. I'd be interested in an in-depth analysis of the significance of sensor size, sensor design and flange distance

Direct link | Posted on Jul 7, 2014 at 14:21 UTC as 308th comment | 12 replies
In reply to:

crashpc: M mount still dead?
No way, M3 is coming!

I have used the EOS-M for video on both the 24-105 f/4L and my 70-200 f/2.8L. It is a very affordable, very small and light second body to my 5D3. It has gotten me shots I would not have otherwise had. Versatility is important. Plus the new Samyang primes are going to be great additions to my kit. Rokinon has a 12mm f/2 for M mount. I'll use this for handheld stabilizer video, at about 1/3 the weight of equivalent on the 5D3 I'll be able to carry it forever.

Direct link | Posted on Jul 2, 2014 at 03:16 UTC

Not far from what I expected to see for stills, but I am expecting to be amazed at low light video from the A7s.

If the low light video from the A7s does not produce the "holy-crap, wow!" effect, then I won't see any point to this camera, either A7r or 5DIII would be better options. The A7s video needs to be really clean and detailed up to ISO 25,000, and useable above that, in order for this camera to make sense. Otherwise why not take the A7r for a light weight camera, or the 5DIII for an all around work horse that natively accepts a ton of excellent lenses?

Direct link | Posted on Jun 22, 2014 at 13:10 UTC as 130th comment
On Sony Alpha 7S added to test scene comparison tool article (269 comments in total)

I'm surprised at how well the A7r holds up

Direct link | Posted on Jun 20, 2014 at 22:15 UTC as 25th comment
In reply to:

crashpc: M mount still dead?
No way, M3 is coming!

I'm waiting for an all-out pro EOS-M ! I want it all, and I want it in my pocket! :)

Direct link | Posted on Jun 20, 2014 at 15:40 UTC
On Panasonic Lumix DMC-FZ1000 First Impressions Review preview (1282 comments in total)

Can you set the audio level manually in video?

Direct link | Posted on Jun 12, 2014 at 14:46 UTC as 278th comment

The shots are barely larger than thumbnails

Direct link | Posted on May 25, 2014 at 14:53 UTC as 15th comment | 1 reply

I didn't like it, just repetitive spinning, make me feel ill.
A guy put a gopro on a ceiling fan outdoors, with fireworks ... that was cool! https://www.youtube.com/watch?v=qvghDGlrbUo

Direct link | Posted on May 24, 2014 at 19:31 UTC as 42nd comment
On Lytro Illum in the hands of five leading photographers article (163 comments in total)

I think this is more of a proof of concept. The technology is young and new, and full of potential. Time will tell if they can realize the potential.

Direct link | Posted on May 22, 2014 at 03:05 UTC as 12th comment
On GoPro files for $100 million IPO article (30 comments in total)

There's already a lot of competition in this segment. It's going to get harder for GoPro

Direct link | Posted on May 21, 2014 at 15:45 UTC as 4th comment
On Hands-on with Android 4.2's Photo Sphere post (40 comments in total)

I'm on Android 4.4.2 Samsung Note 3 ... no photosphere in sight

Direct link | Posted on May 18, 2014 at 18:44 UTC as 9th comment
On Hands-on with the GoPro Hero 3+ Black Edition article (209 comments in total)

4K at 15 fps is NOT 4K video. You can't sample it down to 1080p and get an acceptable video. Maybe Hero 4, but this is not it

Direct link | Posted on May 18, 2014 at 18:28 UTC as 8th comment
On Sony announces pricing and availability for Alpha 7S article (131 comments in total)

Does it read the whole sensor or line skip when it is recording 1080p internally? Makes a big difference ... looking for sharp results without moire and aliasing at 1080p in camera

Direct link | Posted on May 16, 2014 at 15:48 UTC as 14th comment | 2 replies

How is it in low light? Compared to 5DIII
Also... is it just as good in 1080p as 4K... no moire etc?

Direct link | Posted on May 13, 2014 at 21:02 UTC as 16th comment | 1 reply
On Little beauty: Nordin Seruyan's macro images article (352 comments in total)
In reply to:

MGJA: I was as impressed by the technical prowess of these images as anyone here. Then I opened the link provided by mansod in the comments, namely:

http://heejennwei.blogspot.se/2013/08/pseudo-nature-photographers-of-indonesia.html

And, well... Let's just say I'm slightly less impressed and slightly more dismayed now.

DPR: providing promoting space for this sort of callous disregard for life in the interest of photographic self-promotion is an editorial policy you'd do well to take under some serious consideration.

Great link ... explains a lot... I will be much more suspicious now

Direct link | Posted on May 11, 2014 at 15:35 UTC
On Journey to the center of the Earth with Robbie Shone article (49 comments in total)

Great work! Photo 6 ... is that caver physically attached to the line, or just holding on?

Direct link | Posted on May 11, 2014 at 11:17 UTC as 30th comment
On FlashQ: The little cube for flash photography article (53 comments in total)
In reply to:

gunkan: I think is quite cool! But i am quite happy with inexpensive/Yongnuo triggers without TTL. The usual scenarios where i shot with several flashes don't require TTL. Actually i don't use TTL at all because of too many underexposures.

The Yongnuo with TTL also allows you to change all flash settings from the camera ... which is more important than the TTL function. Simple triggers require you to go to each flash and fiddle around with them.

Direct link | Posted on May 7, 2014 at 12:45 UTC
On Lytro announces Illum light field camera article (346 comments in total)

Interesting, but need to see samples. What is the image resolution?

Also... the future possibilities for video are potentially game changing.

Direct link | Posted on Apr 22, 2014 at 12:27 UTC as 121st comment | 10 replies

It looks really cool! Very curious to see reviews on this baby. How does it do in low light I wonder?

Direct link | Posted on Apr 7, 2014 at 19:52 UTC as 20th comment | 1 reply
Total: 88, showing: 1 – 20
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