Henrik Herranen

Lives in Finland Tampere, Finland
Works as a Digital Signal Processing Software Engineer, MSc
Joined on Oct 6, 2005
About me:

Plan: To baldly shoot what everyone has shot before.

Comments

Total: 369, showing: 1 – 20
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In reply to:

Henrik Herranen: "comes with a 13mm f/2.8 equivalent lens"

So, considering the crop factor of a 1/2.3" sensor is 5.6, the lens is about 2.3mm f/0.5? Really?

Simon: Wrong.

Link | Posted on Oct 15, 2017 at 18:34 UTC

"comes with a 13mm f/2.8 equivalent lens"

So, considering the crop factor of a 1/2.3" sensor is 5.6, the lens is about 2.3mm f/0.5? Really?

Link | Posted on Oct 14, 2017 at 19:24 UTC as 8th comment | 6 replies
In reply to:

Henrik Herranen: Thanks for a proper Throwback Thursday article after a few weeks of ho-hum two-liners!

Still, I must say that you may have made a mistake by dissing other G series cameras because of their body colour. I've owned or had extensive access to all G series cameras between G1 and G6, and G5 was the only camera where things devolved... until the G7 where everything was foobared.
- G1: The original, 3 MP, ISO 50 yeah man!
- G2: 4 MP, sensor changed from CMY to RGB, much better reds.
- G3: Same sensor, but better lens.
- G5: Noisy 5 MP sensor, gave much credence to the now-refuted notion that more MP = worse image quality. Hurt me personally, because I bought one for my sister and noticed the IQ deficit only after buying the camera abroad and couldn't return it.
- G6: 7 MP = lots of MP, less noise, everything's good again!
- G7: WHAT? Slow lens, no vari-angle LCD? No, this is not a G series camera, forget it!

The G series found itself again a few years later, but WHAT happened with the G7?

guyfawkes: I understand completely your sentiments.

Link | Posted on Oct 13, 2017 at 20:19 UTC

Thanks for a proper Throwback Thursday article after a few weeks of ho-hum two-liners!

Still, I must say that you may have made a mistake by dissing other G series cameras because of their body colour. I've owned or had extensive access to all G series cameras between G1 and G6, and G5 was the only camera where things devolved... until the G7 where everything was foobared.
- G1: The original, 3 MP, ISO 50 yeah man!
- G2: 4 MP, sensor changed from CMY to RGB, much better reds.
- G3: Same sensor, but better lens.
- G5: Noisy 5 MP sensor, gave much credence to the now-refuted notion that more MP = worse image quality. Hurt me personally, because I bought one for my sister and noticed the IQ deficit only after buying the camera abroad and couldn't return it.
- G6: 7 MP = lots of MP, less noise, everything's good again!
- G7: WHAT? Slow lens, no vari-angle LCD? No, this is not a G series camera, forget it!

The G series found itself again a few years later, but WHAT happened with the G7?

Link | Posted on Oct 12, 2017 at 21:34 UTC as 23rd comment | 4 replies
In reply to:

faithblinded: WTH Metabones. 0.5x for a dead system, but you can't figure one out for micro four thirds? It's the system that makes the most sense for a .5x converter. With the 2x crop factor, ff lenses could be used at their native field of view. Yes please!

I'm only guessing here, but could it be they'd have problems with the corners if adapting FF lenses to m43 with a 0.5x booster? In this application only a tiny fraction of the center of the lens' image circle is used.

Link | Posted on Oct 11, 2017 at 06:58 UTC

"bypartisan"?

Link | Posted on Oct 6, 2017 at 20:19 UTC as 11th comment | 1 reply
On article Throwback Thursday: Sigma SD1 (231 comments in total)
In reply to:

Henrik Herranen: "Foveon sensors capture color in a completely different way than Bayer sensors, with each 15MP layer capturing a primary color."

I'm afraid this is incorrect. Sigma would like you to believe othewise, but the layers don't capture primary colours, but a somewhat blueish, a somewhat greenish, and a somewhat reddish colour. Examine the RAW files if you don't believe me. There's not nearly as much colour separation as there is on a Bayer sensor. This is at least part of the reason for Foveon's high-ISO colour blotches. Even though it isn't interpolating spatially, it is extrapolating chromatically.

I don't want to take anything out of Sigma's achievements. The Foveon sensor is a unique idea, and Sigma's Art lenses are wonderful (I have the 50/1.4A, and MAN!). I love the company for its innovations! But, the turth of it is that Foveon sensors for sure don't capture three primary colours as such.

Scottelly: Anyone caring about the truth vs lies does care. As much as I respect Sigma for their very affordable super lenses (I own the 50/1.4A and it's magic), I despise their Foveon marketing, which, honestly, is based on straight lies.

I work in audio industry, and I am an expert in audio signal processing. In my profession I have to fight against similar lies and misdirections on a constant basis. After 20 years it gets really tiresome to fight against the very same lies, perpetrated over and over again by publishers and web authors alike. That's why I really hate the Foveon lie. It is a purposeful lie, sold hook, line and sinker to even respectable publications, like DPreview, which I othewise like so much.

Link | Posted on Sep 28, 2017 at 19:14 UTC
On article Throwback Thursday: Sigma SD1 (231 comments in total)

"Foveon sensors capture color in a completely different way than Bayer sensors, with each 15MP layer capturing a primary color."

I'm afraid this is incorrect. Sigma would like you to believe othewise, but the layers don't capture primary colours, but a somewhat blueish, a somewhat greenish, and a somewhat reddish colour. Examine the RAW files if you don't believe me. There's not nearly as much colour separation as there is on a Bayer sensor. This is at least part of the reason for Foveon's high-ISO colour blotches. Even though it isn't interpolating spatially, it is extrapolating chromatically.

I don't want to take anything out of Sigma's achievements. The Foveon sensor is a unique idea, and Sigma's Art lenses are wonderful (I have the 50/1.4A, and MAN!). I love the company for its innovations! But, the turth of it is that Foveon sensors for sure don't capture three primary colours as such.

Link | Posted on Sep 28, 2017 at 16:00 UTC as 41st comment | 6 replies
In reply to:

Henrik Herranen: Ok, this is the first time ever that I have thought: "Wow, I'd wish this lens' equivalent existed for FF..." Really interesting little piece of glass!

I used to own a Peleng 8mm lens for FF, so I have some experience using a somewhat similar, though not quite as extreme lens. While definitely a niche lens, using it was fun from time to time.

Btw, I believe the following is incorrect in the article: "35mm Equivalent Focal Length: 3.25mm". The real focal length is 3.25mm, so the FF equivalent would be 6.5mm.

LFPCPH: Yes, the Nikon is a nice little lens. But adding an adapter to my Canon is way too much trouble, so I think I'll just wait for the time being.

Link | Posted on Sep 24, 2017 at 19:45 UTC

Ok, this is the first time ever that I have thought: "Wow, I'd wish this lens' equivalent existed for FF..." Really interesting little piece of glass!

I used to own a Peleng 8mm lens for FF, so I have some experience using a somewhat similar, though not quite as extreme lens. While definitely a niche lens, using it was fun from time to time.

Btw, I believe the following is incorrect in the article: "35mm Equivalent Focal Length: 3.25mm". The real focal length is 3.25mm, so the FF equivalent would be 6.5mm.

Link | Posted on Sep 24, 2017 at 07:05 UTC as 20th comment | 4 replies

"Venus Optics claims that it is 'the world's fastest 15mm rectilinear lens for full-frame.'"

While this might technically be true (no faster commercial 15mm FF lens exists), Sigma currently offers an even shorter and faster lens, the 14/1.8.

Having picked that nit, let it be said that the Laowa 15/2 looks like a genuinely good offering, and for a reasonable size and price, too.

Link | Posted on Sep 3, 2017 at 15:41 UTC as 17th comment | 9 replies
In reply to:

Graham Meale: Interesting that the actual eclipse is a little larger and in a different position on the processed shot. Maybe not just "simply took the shot on the left and pulled the shadows up in post"?

Adrian: The framing is practically the same, but if you look at the suns of the two images side-by-side, the one in the processed image is significantly larger. I call shenanigans.

Link | Posted on Aug 24, 2017 at 08:18 UTC
On article Flip to flop: the pocket camcorder flash in the pan (48 comments in total)
In reply to:

Tom K.: If I ever heard of it, it didn't make an impression. I have no recollection of this thing. It may be that it was a phenomenon that I completely missed, or it may be that it wasn't as widespread as you seem to think it was.

And here.

Link | Posted on Aug 18, 2017 at 05:59 UTC
In reply to:

garyknrd: Just a Nokia name on the phone. A very small percentage of the profits I would guess. Nokia is betting on 5k hardware and beyond I think. They are sinking allot of money into it. Hopefully it will pay off for them.

HMD Global has been founded by former Nokia executives, so that's another connection to Nokia.

Link | Posted on Aug 18, 2017 at 05:37 UTC

I have one word for this: desperate.
Only someone desperate would pay people for exchanging their current system for a new one.

Link | Posted on Aug 14, 2017 at 20:16 UTC as 31st comment | 1 reply
On article SainSonic launches 50mm F1.1 lens for APS-C cameras (252 comments in total)
In reply to:

flashcactus: There are 12 aperture blades. He said so, and I counted them.

Five!

Link | Posted on Jul 7, 2017 at 20:25 UTC
In reply to:

RCicala: This is my favorite article in DPR History. Made my day!

I remember when 5D Mk II video was all the rage and people would be shocked that their footage didn't look like 'insert famous filmaker'. Of course he had dollies, jibs, tons of lighting, and 16 assistants.

In my time, and as much as I like Nokia, I thought their camera advertisement campaign where they totally misrepresented their camera features, that campaign deserved all the bad publicity it got.

And it was all so unnecessary.

After all, they researched, realised and released the Nokia 808 1" 40 MP Monster Camera literally 200 meters (220 yards) from where I work, and I have the highest ever respect for the development team! You're the greatest ever! Jumankavita jätkät, kova juttu!

But, at the same time, this is lame. Bad. Worthless. Class-action-suit inept. I don't know how the actual camera is like, and these shots/videos don't help in the slightest.

My heart, as well as my company is in audio, but we'd never, EVER, do this. Well, perhaps that's why we are, after 26 years of existence, still a small company.

FU, liars!

Link | Posted on Jun 30, 2017 at 19:58 UTC
On article Sony's Mavica FD71 liked floppy disks, hated magnets (80 comments in total)
In reply to:

Alex Permit: Cat photos! A genre of photography created by the invention of the digital camera.

We never saw so many cats in the film era.

The earliest cat photograph is at least from over 150 years ago. Here is one contenter, taken with the daguerrotype process:
http://fusion.kinja.com/is-this-cat-photo-the-oldest-cat-photo-ever-1793848211

Link | Posted on Jun 29, 2017 at 19:15 UTC
On article Hot mess: Remembering the Leica M8 (157 comments in total)

"In the mid 2000s"

Barney, my friend, we are still about perhaps maybe approximately sort of 400ish years short of the "mid 2000s". :-)

Link | Posted on Jun 23, 2017 at 19:41 UTC as 8th comment | 2 replies
In reply to:

Photomonkey: I liked the disclaimer at the end that said "Do not attempt".

It had not occurred to me that I might find a neighbor with a 787 that wanted to horse around a bit.

Oh shoot! Yes, of course I do.

Link | Posted on Jun 17, 2017 at 09:42 UTC
Total: 369, showing: 1 – 20
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