G Davidson

G Davidson

Lives in Japan Kashiwa, Japan
Works as a Teacher
Joined on Jan 14, 2007
About me:

Future plan- to make books with my photos fused with poetry. At the moment, they are in online galleries and photo-blogs, like-

http://daylifepics.blogspot.com/
http://momentsofinfinity.blogspot.com/

Equipment-

Nikon D300,
Nikon D5100
Nikon D3100
Panasonic LX5
Canon G9

SB-800 Flash
Velbon QHD-41 Monopod

Lenses-

Note- I try to stick to 'bright' lenses, so as to control the depth of field and to have a brighter image in the viewfinder, though for traveling and ultra-wide angles I compromise on this.

Nikon 24mm f/2.8D.......................(street photography, walk-around)
Nikon 28mm f/2.8D.......................(events, walk-around)
Nikon 35mm f/1.8 D.....................(my other walk-around)
Nikon 50mm f/1.4D.......................(low light and portraits)
Nikon 17-55mm f/2.8 DX................(events, weddings)
Nikon 18-55mm f/3.5-5.6 VR..........(for traveling light)
Nikon 18-105mm f/3.5-5.6 VR........(travel)
Nikon 35-70mm f/2.8D...................(my DX portrait zoom)
Nikon 70-300mm f/4-5.6 VRII.........(nature, travel, candids)
Nikon 80-200mm f/2.8 ED AF..........(candids, nature)

Tokina 12-24mm f/4 ATX Pro-DX.......(wide landscapes, events)
Sigma 50mm f/1.4 HSM....................(portraits, details, bokeh, low-light)
Tamron 90mm SP AF f/2.8 Di...........(macro with amazing, beautiful bokeh)

I recently sold on my Nikon 24-50mm AF, Nikon 70-300mm ED AF and Tokina 28-70mm AT-X AF SV, as they are not so useful on DX and their ranges are covered better by the lenses above.

Most Wanted Lenses-

70-200mm VR
85mm f/1.4D
17-55mm f/2.8 AF-S DX Nikon/ another equivalent zoom for DX, like the Tamron 17-50mm version

Comments

Total: 248, showing: 121 – 140
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In reply to:

Roland Karlsson: So simple, yet so ingenious, The Bayer CFA pattern. No matter how you think, you cannot find a more economic pattern. Many people have tried. There are variants, like the ones Fuji dreams up now and then. But, its only variants, in some way better, bit overall less efficient.

Not many people have made an invention that have had such an impact.

Now, we really want a real three layer RGB sensor. But ... its very hard to make one. The Foveon is a good try. It works. And it has some merits. But, it still dont beat the Bayer CFA in economy. Eventually someone will make a three layer sensor that do beat the Bayer CFA solution. But, it will take several years from now.

My thoughts go to Bruce Bayer´s family and friends. May they find some comfort in that Bruce Bayer was one of the more influential persons on this planet.

I totally agree. What made digital cameras mass-market devices was economies like this and using cropped sensors. I look forward to Fovenon-like cameras that are just as usable as what I have today, once we can process all that data quickly, but thanks to Mr Bayer, we don't have to wait for it to take high quality images.

Direct link | Posted on Nov 21, 2012 at 23:26 UTC
On Just Posted: Panasonic Lumix DMC-FZ200 Review article (177 comments in total)
In reply to:

olivier_777: I'm surprised that in such a review the lens performance is not systematically tested ; this is for me the most important aspect of the camera. How does it perform at 25, 35, 50, 100, 200, 500... Wide open and at optimal aperture? Resolution, contrast, astigmatism, bokeh, flare, distorsion, shading, you know... The resolution test or studio test at one focal lens and one aperture only tell us nothing there.

Very true. I've read user reports that the lens is very soft unless closed down, at which point it gets closer to the performance of it's predecesor. Yet, it's bluntly stated in the review that it's an inherently better lens based on specs. Some might say that anyone expecting sharp results wide open is expecting too much, but that's how it's being advertised, so it would be good to know.

Direct link | Posted on Nov 18, 2012 at 00:43 UTC

I recently purchased Sigma's excellent 19mm f/2.8. The Sigma's a bit too dark on M4/3 but otherwise is very light, quick to AF and sharp, I'd be interested to see them compared.

Direct link | Posted on Nov 15, 2012 at 08:30 UTC as 59th comment
In reply to:

gl2k: Perky price.
Nikon DX 35mm f1.8 and FX 50mm f1.8 are about €170

I own both those lenses and aside from being sharp and having a reasonable bokeh they are basically okay. That's all. Yet the great M4/3 lenses are extraordinary, an amazing deal for their price.

That's the mirrorless revolution and why Nikon, with their notion that a pro lens must have an extraordinary pro price (partly from needing to cover the larger sensor of course), can't compete in this area.

Direct link | Posted on Nov 15, 2012 at 08:26 UTC
On Metabones adds autofocus to Canon-NEX adapter article (63 comments in total)
In reply to:

Jim Evidon: To G. Davidson,
I contacted Metabones a few months back about a similar adapter for Nikon lenses since I have a respectable inventory of them. Metabones responded with a categorical NO. It may be something about the Nikon architecture that mitigates against it. Whatever the reason, they do not plan to do so. Photodiox makes a neat adapter that has an aperture ring on it for late model Nikon lenses to MFT bodies, so even if it is manual focus, you can still control the aperture on the lens. I have one and it works very well. It is their Fotodiox NIK(F)G-m4/3 model. You should see my Nikon mount Sigma 50-500 attached to the OM-D, or should I say OM-D attached to the Bigma. It works, though.

Thank you very much for asking, Jim, much appreciated!

It's a great shame it won't be possible, but it's been known for some time that the Canon mount is more friendly to adaptation, mounting Nikon or Leica R mount lenses on it for example.

I do have a G-mount compatible adapter for M4/3 but may look into the one you suggest, as my Kiron one lacks exact aperture control, just having a vague slider. Still, MF is not very easy on these cameras without focus-peaking, so maybe if they add that it will be more usable.

I suppose the answer will be Nikon's inevitable DX mirrorless, with their excellent on sensor PD-AF technology, whenever that emerges. For me the M4/3 crop is interesting, but the V1's CX crop is pretty much overkill.

Direct link | Posted on Nov 15, 2012 at 02:07 UTC
On Just Posted: Nikon D600 In-depth Review article (498 comments in total)
In reply to:

Kodachrome200: So i fooled around with one in a camera shop and i find the AF area troubling. It has plenty of points there just all bunched together. I find that irritating beyond words. It looks like continuous af would be really hampered and thus action photography very difficult

For me thesis a major deal breaker in a camera at this price point. That and the unprecedented dust issue say to me 'wait for a better one'.

Direct link | Posted on Nov 14, 2012 at 09:54 UTC
On Metabones adds autofocus to Canon-NEX adapter article (63 comments in total)

Excellent news and points to a future where we can use any lens we want on a camera with AF. Now I want one for Nikon Lenses on M4/3, it must be possible.

Direct link | Posted on Nov 13, 2012 at 23:58 UTC as 16th comment
On Transcend releases new Wi-Fi memory card post (47 comments in total)

Sounds good, I especially like the 32gig version, which is about what I need for a long trip without changing cards. It's still a bit slow compared to the newer UHS cards, though.

Direct link | Posted on Nov 9, 2012 at 20:39 UTC as 22nd comment
In reply to:

photo nuts: Great to see lens reviews again. But please, please keep this up. Hope we don't have to wait one year for the next one. :)

Quite obviously, the Nikkor 18-300 lens is too heavy and too expensive. As pointed out by others, better stick to a simple 2 lens kit.

I can only agree. For someone like me who dislikes changing lenses (chance of dust, missing shots) it also means a two-camera setup. This lens can't come up with the goods on a modern sensor, though, it is good to have a definitive review to point this out.

Direct link | Posted on Oct 31, 2012 at 12:01 UTC
On Hands-on with Nikon V2 article (453 comments in total)
In reply to:

BobYIL: Dear Nikon,

You offer the 24MP APS-C size fully equipped D3200 with kit lens + 55-200 zoom for $796 and this point & shoot V2 with kit lens for $896. Hard to understand..

I think it's asking too much, too, but the price will go down. This is really apples and oranges, as this camera may have a smaller sensor, but has many features that would appeal to pros- the ultra-fast AF, evf, crop of larger lenses, durable build yet small size.

Direct link | Posted on Oct 27, 2012 at 05:36 UTC
In reply to:

Roland Karlsson: I think its cute :)

My first thought was - yet another fake retro design. Like the OM-D. It resembles Nikon F with FTn prism or even an F4. That high squarish prism.

The "prism" here is of course fake, like in the OM-D. And it is much smaller than the F ones. But nevertheless! Cute!

I'm not such a big fan of the design, but I think you are right and most people are forgetting the context. This harkens back to Nikon's older SLR designs, just as Olympus did to their's with the EM-5. When people see how small it is they may feel differently. The good thing is its convenient photographically in a way the former V cameras haven't been.

Direct link | Posted on Oct 25, 2012 at 06:45 UTC

Okay, leaving aside compacts, here's what I'd like for image quality. Full-frame sensor, mirrorless. PDAF on sensor, so will AF with all Nikon lenses and mount any other company's, along with excellent 'VRIII' in-body stablisation. Built-in EVF, 60fps video, with focus-peaking for MF usage.

A range of optional grips to make it larger for the big lenses, along with a selection of pancakes and foldable zooms for usual usage, that will be smaller than most full-frame lenses so far. As a system, it can be quite small, but scales up for specific usages, which makes it somewhat modular, a bit like the OM-5 design.

Direct link | Posted on Oct 22, 2012 at 06:05 UTC as 112th comment
In reply to:

Zvonimir Tosic: Is the "open mount" idea possible in the age of digital? Say, an "Open Office" equivalent of a camera. Can that be Leica's M mount but with AF. Leica's patent on M has expired. Or something similar, perhaps even smaller ...
Or, do we get stuck to manufactures' proprietary technology instead, and wait for them to make our 'dream camera', which may never come anyway?
On the other hand, is it possible to source low quantities of sensors just for the sake of making one's own digital camera, experimenting, or at least developing some concepts which may be funded if proven worthwhile?
Is anyone doing things like that in the age of digital at all — creating custom made digital cameras?

That would be nice, but especially with AF systems hard to realise. The closest (though not really open) is M4/3.

Direct link | Posted on Oct 22, 2012 at 03:55 UTC
In reply to:

Jimxrt: I think Nikon should do a semi-compact camers that is a mirrorless system that is designed to use current AF-D and G Series slr lenses with the controls and menus that are simple straight-forward and easily understood and navagate through. Most cameras have controls difficult to manipulate, and menus that are difficult understant, are a nightmare to navagate and to use.

I think a mirrorless camera with easily understood control and intelligent but simple to understood menus and easily navagete through, a large APC-S sensor, about 12 to 16 MP, that uses the current F mount lenses like the G series and DX type lenses. It would be compact, easy to use, good resolution, has interchangeble lenses all ready availabel versital quiet. I think a great consept.

V/R
Jim B

Jim, I'm hoping for the same system. It's true that lenses will be bigger than for other formats, but I don't think we should underestimate the pancake/foldable zooms that could be made for it for when size is an issue. I am biased, as I have a lot of Nikon lenses I'd use with an adapter at first, hopefully with the Nikon 1's sensor-based PDAF.

Seeing as Sony, Fuji, Canon, Samsung and Pentax are all offering APS-C mirrorless systems, there must be a market as it offers a great compromise to maintain decent control over DOF, IMHO an essential function for any serious camera, which smaller sensors really struggle with.

I suppose Nikon is waiting until Mirrorless takes off in a bigger way. They could still have the CX system for people who want something more compact and with adapters use their (especially) long lenses on it. A mirrorless D7000 is waiting in the future, no doubt.

Direct link | Posted on Oct 22, 2012 at 01:56 UTC

Assuming it's compact, I'd want a 1-inch or larger sensor, with about a 24-120mm (equivalent) lens. Ultra-high resolution in the sensor would make cropping longer lengths a breeze. I'd also want that lens to be reasonably bright on the end, perhaps having some kind of foldable feature to make this possible, as it might need to extend further for this.

I'd definitely want an EVF/high resolution LCD that at least tilts, or preferably folds out. I'd want a workable hybrid focusing system, with on-sensor PDAF and CDAF as well, for speed and reliability. It would need a few buttons and dials, not as many as pictured, but two dials for aperture/exposure settings would be good. A capitative touchscreen would help a lot to make deeper settings accessible.

It's hard to perfect right now, as we are still dependant on larger sensors for image quality. With all the progress being made here, I think we will be able make do with much smaller ones in the future, with bokeh produced digitally.

Direct link | Posted on Oct 22, 2012 at 01:46 UTC as 125th comment

Sounds very good. Major reasons to use Raw for me are white balance corrections, adding my own choice of sharpening and, of course, more flexibility with exposure. In all these cases, a lossy Raw would be a lot more useful than a jpeg and these days Raw files are just getting too big to store, growing at a much faster rate than hard drive sizes.

I think all manufacturers should include a 'save to DNG' option, as the format will definitely be more survivable than their jumble of proprietary ones. Or it's part, if Adobe is going to have newer versions that are incompatible with their older software, there should be free tools to 'convert' them to be usable. It's not much of an open format if there aren't free tools avaliable to access it.

Direct link | Posted on Oct 5, 2012 at 23:23 UTC as 32nd comment | 2 replies

Very sharp, I'm confident about the IQ... but with the equivalent DOF of a 70-200mm 5.6 full-frame lens, not so suitable for portraits, subject isolation generally.

Direct link | Posted on Oct 4, 2012 at 22:52 UTC as 3rd comment | 1 reply

More is better and whilst I'm not so impressed by the smoothness of the image I've seen in EVFs, so far, which is a bit jagged and stuttery compared to a really good OVF, being able to see the final image, etc make this a much more useful option. If we can have a really high quality image too, that would make imos pleasure to use.

Direct link | Posted on Sep 29, 2012 at 22:49 UTC as 9th comment
In reply to:

Edgar Matias: Thom Hogan wrote a very interesting article on sensor sizes a few months back.

Basically, the conclusion he came to was that high-end smartphones will eat into the market for the Nikon 1 and smaller sensor cameras, while m43 and APS-C erode the market for Full Frame cameras.

m43/APS-C hit the "good enough" sweet spot at a much lower cost than FF.

I think the Nikon 1 system would be much more interesting if it had better lenses. A Panasonic LX7 or Olympus XZ-2 style camera with a 1" sensor would be a lot more interesting than the Nikon 1 system.

You can read the whole article here...

http://www.sansmirror.com/newsviews/june-2012/sensor-sizes-redux.html

Full-frame's just too expensive and heavy to be mainstream with the smaller formats around. Even if it eventually drops below the $1000 line, it's relevance is fading as smaller sensors advance. Today's sweet-spot is APS-C, followed closely by M4/3. Tomorrow's will be M4/3 and after that 1" cameras and smaller (talking of inter-changeable lens cameras, here).

It's true that the space between today and tomorrow is small, but its large enough to affect most people's purchases. Which means that, however much Nikon hopes for the Nikon 1 or FX, I can't see them doing as well in the mainstream as their DX line. Of course mirrorless FX could be a different story, if they can shrink the lenses.

Direct link | Posted on Sep 26, 2012 at 10:08 UTC

Come on Fuji, how about the full-frame version! It would be incredible to use on legacy lenses and I'm sure with the lack of a mirror Fuji would make some spectacular designs. Nikon denied their plans for many years, too....

Direct link | Posted on Sep 23, 2012 at 02:01 UTC as 15th comment | 4 replies
Total: 248, showing: 121 – 140
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