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: 104, showing: 1 – 20
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In reply to:

DamianFI: Hopefully this solves the crashing of my A7RII when using the MC-11.

@Eric, I think he was against the only one lens mount idea, with electronic adapters for whatever camera you want. This idea below actually would not work as nikon, pentax, canon, sony use different ways to contol the aperture.

Link | Posted on Oct 29, 2016 at 18:27 UTC
On article Google Pixel tops DxOMark's Mobile rankings (116 comments in total)
In reply to:

vscd: Google is getting everywere now... I can't get to the toilett without finding something from them.

@ Fairbanks I think all toilets run iOS.

Link | Posted on Oct 5, 2016 at 16:37 UTC
On article Google Pixel tops DxOMark's Mobile rankings (116 comments in total)
In reply to:

Bombastic: We have 9 phones now in our household. Being a geeky establishment with two engineers and 2 geeky teenagers, this shouldn't be a surprise. Incidentally, we all find it hilarious people are actually considering jumping ship from Android to iOS based on hardware improvements alone. The phones are remarkably similar, but the environment they roam in is entirely different.. If you're centralized around iOS you will never defect to Android, and vice versa. Henceforth, comparing an image quality of an iPhone to an Android is an exercise in pixel-peeping futility.

I think he means why would you ever use a horible apple product. Really everyone I know with an iphone has a broken screen. And when I see someone with an iphone the first question I ask is if their screen has broken yet.
This in contrast to a samsung S1 which I have droped no less than 6 times from 4 foot height on to concrete without issues. Or my new LG g4 which the wife accidentally drove over, without any issues.

Link | Posted on Oct 5, 2016 at 16:35 UTC
In reply to:

sonics: Looks like a great lens, but gone is the compact m43 format:

http://camerasize.com/compact/#594.613,660.545,hd,t

@ptox Dont you just hate it when olympus announces a new len, all my other micro four thirds lenes disappear. :p

Link | Posted on Sep 21, 2016 at 23:03 UTC
In reply to:

offtheback: I like this lens.Click on the link below that I've written to end all discussion of equivalence.

Haha-no such link is possible.Carry on!

I don't kow about that this link should work if you read both page one and two:

http://admiringlight.com/blog/full-frame-equivalence-and-why-it-doesnt-matter/

Link | Posted on Sep 21, 2016 at 22:59 UTC
In reply to:

ogl: It's 28-200/f8.0 equivalent for FF...F8.0...Hmmmm...

@mike99999, no buy a light meter. It will not have sensor size as a setting. Because Iso, shutter speed and aperture will be the same for an exposure nomatter if you use 9x10 camera, tinny 135 sensor camera or the compact 43rds cameras.
@ptox sadly most people have no idea what aperature means especially on four thirds cameras. This is way the same junk gets talked about. For exposure issues buy a light meter, sensor has no part in it. Thus f4 is f4. For depth of field issues the doubling people do ONLY APPLIES AT INFINITY!!! Focus point. Thus if a four thirds lens focus closer than a comparable 135 format lens the depth of field on the four third lens will be shallower.

Link | Posted on Sep 21, 2016 at 19:41 UTC
In reply to:

ogl: It's 28-200/f8.0 equivalent for FF...F8.0...Hmmmm...

Yes! The light gathering ability of an f4 lens becuase it is, with the depth of field advantage of a 135 f8 lens at infinity focus. Truely wonderful! ISO can be low and scenic shots will be great.
However it does focus much closer than most 135 format 200mm lenses so you can get better tight delth of field if you want it.

Link | Posted on Sep 21, 2016 at 07:22 UTC
On article Lenovo Yoga Book features unique 'on-demand' keyboard (90 comments in total)
In reply to:

EDWARD ARTISTE: What is this drivel? This is not PC world. ..cmon DP.

@locke_f no the toilet paper is used in the new brown art style. Similar to a wet-dry developing process ;)

Link | Posted on Sep 5, 2016 at 10:33 UTC
On article Samyang teases 'summer blockbuster' lens announcements (124 comments in total)
In reply to:

Kabalyero: So where is the second lens?

If you check out the website looks the the sony Fe Af 50 f1.4 is the second announcement.
Then if you move things around on the images looks the following lenses will be annouced:
3. 21mm f1.4
4. 50mm f1.2 for Aps-c sensor
5. 100mm f2.8 macro

Link | Posted on Jul 26, 2016 at 10:14 UTC
On article Medium-format mirrorless: Hasselblad unveils X1D (1179 comments in total)
In reply to:

dbateman: This is very interesting. My only concern is it looks like the shutter is only in the lenses and there is no mention of an electronic shutter. So adapting my pentacon 6 lenses without leaf shutters would be an issue. If true the number of adaptable lenses goes down dramatically. I hope they add an electronic shutter that can do atleast 1/8000 like panasonic cameras.

Thats excellent if true. I wonder why thats not mentioned in the BH video or the press release. As you truly could use any lens then. Athough the idea of a leaf shutter adapter with shutter speeds on a ring, apeals to me. First ring shutter speed, next ring aperture, you would always know your settings.
The only other design issue I see was not adding an aperture ring on those lenses.

Link | Posted on Jun 22, 2016 at 16:59 UTC
On article Medium-format mirrorless: Hasselblad unveils X1D (1179 comments in total)

This is very interesting. My only concern is it looks like the shutter is only in the lenses and there is no mention of an electronic shutter. So adapting my pentacon 6 lenses without leaf shutters would be an issue. If true the number of adaptable lenses goes down dramatically. I hope they add an electronic shutter that can do atleast 1/8000 like panasonic cameras.

Link | Posted on Jun 22, 2016 at 15:46 UTC as 189th comment | 5 replies
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 252nd comment
On article Benchmark Performance: Nikon D810 review (1989 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 (185 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 30th 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
Total: 104, showing: 1 – 20
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