dbateman

Lives in United States Bethesda, MD, United States
Works as a Microscopist
Joined on Jul 27, 2006
About me:

Sony H5
Canon S5 full Spec converted
Olympus E3
Olympus E510 Full Spec Converted
Sigma SD14
Pentacon Six and Kiev 60

Comments

Total: 93, showing: 1 – 20
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In reply to:

Shake Reduction: Hey, another slow m4/3 zoom!

I am going to bit the equivalent troll, because its been a long time.
The light is still an f3.5-5.6, thus why light meters don't have sensor selection. Test it buy a light meter see what it says, the set this on full 8x10 film camera, tinny 135 camera and a compact micro 43rds. Not surprisingly the exposure works.
But wait you say depth of field. Well did you read the minimum focus distance is 20cm. Depth of field depends on focus distance so at 120mm at focus distance of 20cm you will have very thin focus plain. Most whom site large comparable f ranges forget that it applies only at infinity.

Link | Posted on Feb 24, 2016 at 19:51 UTC

This is the reason why I will not be surprised at all if Canon declares bankruptcy in 5 years. I think they are missing the point!

Link | Posted on Oct 7, 2014 at 20:54 UTC as 250th comment
On article Benchmark Performance: Nikon D810 review (1950 comments in total)
In reply to:

lacroix75: I learned great lesson in the past couple years from Nikon, never buy their first release of anything. Case in point, D800 (early on focus issues, etc..) vs D810 (much more refined version of practically the same thing with minor upgrades), D600 (Oil issues) vs. D610 (again cleaned and refined version). So for me going forward, wait for the second pass, i.e., D910 instead of D900 (if there's such a thing in the future)... ;)

I think your both missing his point. Which is wait for the second release of a Nikon product, as the first release will have problems. Don't buy a D600, get the D610. Don't buy a D800, get the D810. Don't buy a D900, get the D910.

Link | Posted on Jul 31, 2014 at 00:00 UTC
In reply to:

falconeyes: I wished people would stop confusing light field and sensor array cameras.

A light field camera a la Lytro is ignoring some physics (known as plenoptics) which severely limits the usability of such devices and makes them unsuitable for the consumer market. Except you are in a search for venture capital and an exit scenario ...

A sensor array camera a la Pelican is the de-facto standard for future high end smartphone cameras and is parameterized to operate in the usable range for the consumer market (about 9-36 lenses all large enough to deliver enough resolution diffraction limited).

This is like day and night. DPR, please stop calling the Pelican approach light field. It is not, even though a limited range for refocussing is an inherent property of camera arrays (you can refocus with shallow DoF determined by the array diameter within the *focussed* DoF of a single lens within the array).

Fully agree.

Also I would like to see a correction to this article. The sentence: "With control over focus, perspective, aperture, and the ability to tilt or rotate the focal plane, light field imaging expands the set of creative opportunities available to a photographer."
The photographer has always had this control! The word Photographer should be switched with Viewer. That's the new part.

Link | Posted on Jul 30, 2014 at 23:41 UTC
On article Kodak Pixpro S-1 First Impressions Review (184 comments in total)
In reply to:

Artpt: Agreed with other comments on the industry milestone of three companies offering a mix of lenses and bodies in a common format!....a win for consumer choice.

Brand loyalists may not see the benefit in cross competition among the M43 products, but the exchange of common format opens up an entire industry to innovate on other technological aspects....

Pros already use this model to manage multiple aspects of their work but within their camera brand.

Another thought to consider is how fast a company can innovate a product if the R&D works around a known format over innovating the entire format (lenses, bodies, etc). The legacy costs do eat away at budgets and limit creativity.

@Artpt
Nikon did tolerate it. The last Kodak was a Nikon or Canon mount. The SLR/n was nikon mount and the SLR/c was canon mount. The Canon version was really a Sigma camera and not many were sold. However lots of SLR/n and 14n were sold (nikon). Also the Fuji SLR of S1-S5 were all Nikon mount with great DR, used mainly by wedding photographers and some student photo places. However both of these alternatives to Nikon died.

Link | Posted on Jun 24, 2014 at 20:02 UTC

I find it interesting that the EM1 with a Panasonic sensor gets this feature.

Whereas the older models using a Sony sensor (know to have this feature) haven't got the update yet.

Either the update is coming or the Sony sensors sold to Olympus don't support this feature. Maybe somethings are better with Panasonic sensors, thus the shift in the high end pro model.

Link | Posted on Mar 31, 2014 at 18:06 UTC as 29th comment | 2 replies
On article Sigma fixes Nikon D5300 lens compatibility issues (38 comments in total)
In reply to:

Paul Petersen: This is really getting old with the bullies at Nikon picking on Sigma.
It has most likely been going on for a while. The last round was a lawsuit over supposed patent infringement of image stabilization technologies. Not much ever came of it but it matched up well with the introduction of the SD1 with superior resolution to anything out there at the time. The D800 was the first to beat it.
Now Sigma has been on a tear with their "Global Vision" product line. All pretty much outperforming most lenses at greater prices. Now a new Nikon body makes all Nikon lenses malfunction. Very suspicious. Gotta love the agility of Sigma to get a fix out. It seems rather prescient of Sigma to introduce the USB adapter for their new lenses. They must have saw this coming after past skirmishes and figured Nikon would engage in these games next.
Checkmate to Yamaki-san

Who said Nikon gave the communication protocol to Sigma!!
Sigma has stated they they need to reverse engineer mounts to get them to work. If Sigma was handed the protocol, then I would think they would fix all lenses, which doesn't seem to be the case.

Link | Posted on Nov 22, 2013 at 14:31 UTC

I wonder if Smug mug's camera awesome would work on this device? would be interesting if someone just tested it out.

Link | Posted on Nov 13, 2013 at 20:57 UTC as 9th comment
In reply to:

Joe Ogiba: Sigma needs to come out with an E mount version with OIS for the A7, A7r and VG900 or people will just buy the new 24-70mm OSS E mount lens coming out in a few months.
http://www.sony.net/Products/di/en-us/products/lenses/lineup/detail/sel2470z.html

I partially agree. Sigma striping out OIS is silly. Just add a switch on/off. Then the user can decide. Also the price will be the same with OIS removed.
However, I don't think this is a lens for the A7's. You should look for something smaller. But if do buy the Canon version and use the Metabones Electronic adapter. Then you get slow AF, but control over OIS and apeture. (not the speed booster, then normal one).

Link | Posted on Oct 25, 2013 at 13:38 UTC
On article Welcome to our studio test scene (275 comments in total)

Wow, Comparing the Olympus EM1 to the IQ180 is interesting. Setting both to print, you see the slight sharpness difference.

The EM1 only really falls apart with the blue on Red circles. Very interesting.

Link | Posted on Sep 18, 2013 at 15:12 UTC as 120th comment
On article Welcome to our studio test scene (275 comments in total)
In reply to:

Anfy: Now that the old scene has been cleared I'd like to book for some dismantled items; possibly the most famous Martini and Baileys bottles in the world. :-)

I think they drank everything on the move to Seattle. This was noticed as the bottle top opened between some reviews.

Link | Posted on Sep 18, 2013 at 15:08 UTC
On article Welcome to our studio test scene (275 comments in total)
In reply to:

rmbackus: Shouldn't the size of the pictures be the same ?
The Nikon picture is slightly zoomed out.

Your looking at the full res option! Go to the top right and change it to Print or Web to see them on equal footing.

Link | Posted on Sep 18, 2013 at 15:06 UTC
In reply to:

chillgreg: This is a case of shareholder-driven management-driven-accountant-driven-marketing-driven brand dilution. Note the lack of a $500 Rolex or $15,000 BMW.

Ask Coca Cola what happens if you dilute your brand...

It won't bring them down, but apart from a (slight) better balance sheet, it won't be doing Fuji's carefully realised reposition and reputation much good either.

I don't think they are diluting the brand at all. But making it more accessible. Some people don't like the X-trans sensor as still has issues with Raw development. But they like the compact size and the lenses. If this model is popular, you might see traditional Bayer pattern in a better body, like an X-E. Would be nice if you could get an X-Eb (Same body but with bayer sensor instead of X-trans).

Link | Posted on Sep 17, 2013 at 11:14 UTC
In reply to:

Marvol: Is it just me or is this camera just a straight-up head-to-head with the NEX-5 range of models? Nothing more, nothing less? I didn't do an exact count of specs but sensor size, MP, ISO range, kit lens specs, flippy screen, size, design philosophy, Wifi... all say "this is a camera just like the NEX-5".

So Fuji is making this a battle of sensor versus lenses and hope their lenses win?

Fuji lenses do win. But the mistake is no EVF option. NEX-5 does have the option for an expensive but good EVF.

I would have hoped that now with 2 models Fuji would have worked out an external EVF! Maybe in the version 2 of these.

Link | Posted on Sep 17, 2013 at 11:10 UTC
In reply to:

tommy leong: are you able with a quick glance
tell from this Corporate release
how this camera is different from its siblings ???

What art of communication is this...

Yes. I think its easy to tell all the differences.
X-A1, no EVF, Mode dial, Regular Bayer Sensor.
X-M1, no EVF, Mode dial, X-trans sensor.
X-E1, EVF, Classical exposure control, X-trans sensor.
X-pro, EVF/OVF, Classical exposure control, X-trans sensor.

How could you not see that!

Link | Posted on Sep 17, 2013 at 11:07 UTC
In reply to:

A Fool: This makes a lot more sense than a $500 RX100-like lens with no controls that can't shoot RAW.

@Cane, I think your replying to Butoa.

But his is correct the Sony QX lenses seems to be the highest pre-orded camera or what ever it is ever. Stores are having a hard time to get stock.

This think is interesting. Its a single shot, so no Image blur. But the lens is so crazy fisheyed that the IQ seems poor at the distance people (me included) what to look at the image. If they used a larger sensor with more pixels, this might be really good.

Link | Posted on Sep 6, 2013 at 13:07 UTC
On article Hands-on with the 20.7MP Sony Xperia Z1 (77 comments in total)

20Mp is a bit high. But since its on android, would be great for a 3rd party to write a binning software to improve noise. 5Mp would be enough and might offer great results.

Would also be interesting to see if 4K video would be possible. But the process would really have to be fast to handle data. But might be more common now that other 4K phones are out.

Link | Posted on Sep 5, 2013 at 21:39 UTC as 17th comment | 1 reply
Total: 93, showing: 1 – 20
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