Lan

Lives in United Kingdom South East, United Kingdom
Works as a IT
Joined on Jul 12, 2001
About me:

Hobbies:
Photography
Computers
Reading SF/Fantasy
Travel

Comments

Total: 631, showing: 1 – 20
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In reply to:

Ruekon: It is a pity that Nikon came that far. Wasn't it Nippon Kogaku once piggybacking on Zeiss Ikon, providing more innovative lenses and then developing Nikon cameras to perfection?

I wished Nikon would still focus on better and more innovative products, in particular lenses, instead of resting on former success and claiming against companies that take the lead today.

I agree with your sentiment; but if you don't protect your patents they're worthless.

Link | Posted on Apr 30, 2017 at 00:58 UTC
In reply to:

Frank_BR: Nikon is a notoriously difficult company to deal with. Who does not know, for example, the compatibility problems that Sigma has faced in their lenses for Nikon cameras? Nikon leaves real booby traps hidden in the software for communication between cameras and lenses, so whenever Nikon launches a new camera, Sigma engineers have nightmares because Sigma lenses may suddenly stop working with the new Nikon camera. To counteract such Nikon tricks, Sigma launched the Sigma USB dock that allows easy firmware update of its lenses.

Now Nikon fights with ASML and Zeiss is a battle of giants. If Nikon misses, bye, bye Nikon.

Frank: As I understand it Sigma's problems with the lens compatibility are because they don't licence the communications protocol from Nikon. If they paid the licence fees, they'd be fine; so I'd say that's rather more Sigma's fault than Nikon's. Witness the other 3rd party manufacturers whose lenses do work on Nikon's bodies without any fuss...

Link | Posted on Apr 30, 2017 at 00:52 UTC

OK, so a contrast ratio of 100m:1 has to be the dynamic contrast - what's the static contrast?

Link | Posted on Apr 28, 2017 at 18:20 UTC as 17th comment
In reply to:

s_grins: Speakers? This is a gaming monitor

Apparently a pair of (optional) 2W units. And no, this isn't a gaming monitor, those are the Predator models that were released at the same time. The best info I've found so far was over at Tom's Hardware:
http://www.tomshardware.co.uk/acer-predator-professional-new-monitors,news-55466.html

Link | Posted on Apr 28, 2017 at 17:40 UTC
In reply to:

Potemkin_Photo: Once computational photography comes into its own dslr will be dead.

Ahh, but just imagine what you could with that same computational photography on a decent dSLR/MILC...

Link | Posted on Apr 26, 2017 at 20:46 UTC

I really really want one of these!

Also, how long before the Yann Arthus-Bertrand special edition?

Link | Posted on Apr 26, 2017 at 18:42 UTC as 14th comment
In reply to:

Zenza R: haha, there are some errors in the exifs such as camera names :D

Given that the images attributed to the Pro70 are 1.6MP or thereabouts, I think the camera is probably correct - it's the lens data that's hokum :)

Good on Jeff for using a retro camera whilst everyone else was blasting aroud with their GFX, Hasselblads etc!

Link | Posted on Apr 22, 2017 at 19:14 UTC
On a photo in the DPReview photographs Seattle's cherry blossoms sample gallery (1 comment in total)

Love the EXIF on this one :)

Camera: Canon PowerShot Pro70
Lens: Fujifilm GF 120mm F4 R LM OIS WR Macro

The lens couldn't be mounted on a reversing tube, otherwise it would be macro shot. So I can only assume Jeff's hacked off the lens and somehow kludged a Fuji mount onto it - or perhaps the EXIF could be wrong ;)

Link | Posted on Apr 22, 2017 at 19:10 UTC as 1st comment
In reply to:

D200_4me: a10 will be released next week then.

That'll be the perfect camera to go with Apple gadgets - the A10 should be Thunderbolt afterall ;)

Link | Posted on Apr 22, 2017 at 19:05 UTC
On article Samyang Lens Station USB dock spotted in the wild (27 comments in total)
In reply to:

PhotoKhan: The simple fact that a brand has to offer a "Lens Station" for "firmware updates and customization" is an important red flag in what relates to buying 3rd party lenses for proprietary mounts.

Take Sigma's case, for instance.

In spite of also having said "dock" and having vastly improved the accuracy of the AF on their EF lenses working on Canon bodies, they simply seem unable to sort out the consistency side of the equation.

You might be doing fine with a Sigma lens on a Canon body, beautifully accurate AF photos pumping out of the camera and then, all of a sudden and without reasonable explanation, the lens decides to focus on something else for a particular image or series of images.

That's more to do with the camera's AF than the lens IMO.

Link | Posted on Apr 22, 2017 at 18:59 UTC
On article Samyang Lens Station USB dock spotted in the wild (27 comments in total)

Is it April 1st? Almost all Samyang's lenses are completely manual with no electronics at all!

I know the most recent Sony mount lenses are AF etc, but the majority certainly aren't. This would suggest a push towards AF to me; and if so, that's good news.

Link | Posted on Apr 22, 2017 at 18:58 UTC as 2nd comment | 4 replies
On article Fujifilm GF 120mm F4 Macro sample gallery (112 comments in total)
In reply to:

Turboff: Looks excellent, but the system still really needs a lens with a very shallow depth of field, at least f1.8. I don't think medium format customers are overly obsessed with compactness, or would mind the extra cost.

It has very shallow DOF; did you look at those f/4 shots? In terms of DOF a MF f/4 is probably equivalent to f/1.8 on a 35mm camera.

Look at this f/8 portrait shot:
https://www.dpreview.com/sample-galleries/2749269086/fujifilm-gf-120mm-f-4-macro-r-lm-ois-wr-sample-gallery/6591702109
The eyes are in focus, but the nose is OOF at f/8.

Link | Posted on Apr 18, 2017 at 22:09 UTC
On article Light's L16 camera is in final stages of testing (301 comments in total)
In reply to:

Lan: I see three challenges that it'll be interesting to see how they overcome:

The first is cost; the extra 15 camera modules aren't free.

The second is battery life, 16 camera modules eat 16x more power than 1, and interpolating that image data into a final image is likely to be hard on processor usage (and thus power) too.

Third is performance; processing those 16 images into one final image is going to take time; due to the interpolation process I expect it's going to take more than 16x the time. Yes, you can intelligently buffer, and use one single image as a proxy whilst you develop the image in the background, but you'll still need a more powerful processor etc (which again drives up cost and drives down battery life)...

Good to see someone thinking outside the box though!

@noisephotographer: Thank you for the background; I found that IEEE article particularly interesting! So it uses 10 of the 16 cameras at once, and a custom ASIC to marshall the information to a high-end Snapdragon chipset.

According to the IEEE article the full resolution images aren't being processed onboard though, they're going to be processed on your computer when you get home; you only get a 3MP proxy until then. I guess that reduces the processing burden on the handset ;) Hopefully they'll be able to fix that on the production versions!

The price still looks to a be a real problem though, if the price of 1699USD is correct, that's a lot more than I'd be prepared to pay! I'm saying that as someone who bought a Nokia 808 outright... Odd if the cameras are as cheap as Mitch suggests.

@planetMitch: Thank you for the info!

Link | Posted on Apr 17, 2017 at 15:58 UTC
In reply to:

OneLeggedCat: I feel like I'm the only one here who actually loves this thing. I spend more time outside than most, and I suspect most of you don't really ever try to photograph in windy, stormy conditions. Hands free, collapses and extends easily, robust against wind. At $60, it's a bargain.

OP: Agreed. I must admit, having tried to photograph single-handedly at night in a storm, and attempting to juggle the combination of tripod and umbrella without dropping either, this appeals to me. I'm not necessarily sure it appeals to me enough to spend 60USD on it, but I do like the concept at least!

At the same time I was also tempted to invent a filter-wiper; like a windscreen wiper, but for lens filters... Probably should have applied some Rain-X to the filter though ;)

Link | Posted on Apr 16, 2017 at 22:25 UTC
On article Light's L16 camera is in final stages of testing (301 comments in total)

I see three challenges that it'll be interesting to see how they overcome:

The first is cost; the extra 15 camera modules aren't free.

The second is battery life, 16 camera modules eat 16x more power than 1, and interpolating that image data into a final image is likely to be hard on processor usage (and thus power) too.

Third is performance; processing those 16 images into one final image is going to take time; due to the interpolation process I expect it's going to take more than 16x the time. Yes, you can intelligently buffer, and use one single image as a proxy whilst you develop the image in the background, but you'll still need a more powerful processor etc (which again drives up cost and drives down battery life)...

Good to see someone thinking outside the box though!

Link | Posted on Apr 16, 2017 at 20:53 UTC as 26th comment | 8 replies
On article Light's L16 camera is in final stages of testing (301 comments in total)
In reply to:

Pavel Muller: The technology does sound promising, even if I am not sure about this particular product. As others pointed out, I did not see a full size image and the images shown are not really crisp... To be like DSLR, it would need a decent RAW support, a viewfinder and a reasonably handy control over shutter speed and ISO (assuming aperture is fixed). We probably should not expect too much from the first iteration of this concept. A few years from now, this approach, perhaps with fresnel lenses could be a game changer. For now, I will stick with my Nexus cellphone and my Olympus and Nikon FF systems, depending what I need to photograph and how strong I feel that day

pavelmuller.com

Decent RAW support is likely to be non-existent, as part of the "secret sauce" is how they interpolate those 16 images into one final image. If there is *any* RAW support at all it'll be because they have shared the information with the software companies. Personally I expect none.

Link | Posted on Apr 16, 2017 at 20:42 UTC
In reply to:

Modern Jess: I've walked miles and miles on railroad tracks. This sudden outrage, while somewhat puzzling, won't dissuade me from continuing to do so.

It depends on your tracks, and it depends on your trains. Here in the UK where trains regularly reach 189mph in service, you'd have to be pretty stupid to do so IMO. If you're on a US freight line, where service speeds may reach 30mph on the one train a day, it might be a different story ;)

I think warning people to stay off the tracks is a good idea though, wherever you are - some people have no common sense whatsover!

On my route to work there's a level crossing on a busy suburban commuter line, and cars regularly stop in traffic on it because they haven't checked that it was clear to leave the crossing before they drove on to it...
https://youtu.be/ue61c6MZNQw?t=3m

Link | Posted on Apr 16, 2017 at 20:09 UTC
On article Adobe Lightroom CC 2015.10 and ACR 9.10 now available (64 comments in total)

They still haven't fixed the "PS steals focus continually on start-up" bug. Seriously Adobe, WTH!?

Link | Posted on Apr 16, 2017 at 19:57 UTC as 3rd comment
On a photo in the Sigma sd Quattro H Sample Gallery sample gallery (2 comments in total)

Now that's a very odd looking image. The colours are odd, and there's a strange "de-mosaicing like" pattern around the sunburst, in the green areas in particular. Most odd.

Link | Posted on Apr 9, 2017 at 19:49 UTC as 2nd comment
On article Sigma sd Quattro H real world samples gallery (108 comments in total)

Sadly the elephant's still standing in the room. Whilst the base ISO samples look lovely on the whole, anything over and above that really isn't very good at all.

That ISO1600 sample looks like something a compact camera might have produced 15 years ago, and I'm not talking about a good compact camera either...

If you're always shooting at base ISO, this could be a good choice. If you're shooting anything above that, I'd buy something else; anything else!

Link | Posted on Apr 9, 2017 at 18:26 UTC as 19th comment | 1 reply
Total: 631, showing: 1 – 20
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