flektogon

flektogon

Lives in Ontario
Joined on Jul 3, 2006

Comments

Total: 48, showing: 1 – 20
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On article Pentax K-70 firmware 1.10 now available (21 comments in total)
In reply to:

Cameracist: I switched to Sony after the release of a7 but still lust after the Pentax, which was the brand of choice for me before that. The K-1 and K-70 would be a great combo...

Excellent analogy. At first I thought that the right analogy would be the quartz vs. mechanical watches more like digital vs. film cameras, but no, the film cameras are really forgotten while the mechanical watches are still very popular (looking now at my Seiko 5).

Link | Posted on Aug 24, 2016 at 13:50 UTC
In reply to:

Keith Cooper: What is missing here is a look at one of Canon's earlier patents this year.

This also covers such offset lenses but deals with other aspects. A dual lens system allows for offset and parallel rays

Can't post pics here, so see the diagrams at:

http://www.northlight-images.co.uk/cameras/Canon_rumours.html

Thanks for the link. Now I understand why such "heavy" aspherical microlenses are the solution.

Link | Posted on Aug 23, 2016 at 13:12 UTC

I think that the Leica's solution of the same problem is simpler and more elegant. Leica solution (if it is true at all) is based on not entirely direct positioning of the microlenses in front of the sensor pixels. The farther (from the center) is the sensor pixel, the relatively closer (to the center) is placed the microlens. Of course such (or Canon's) solution can work optimally only for one (wide)angle lens. However a tele-lens with a large rear lens (a retro design) would not be "happy" with such an arrangement.

Link | Posted on Aug 22, 2016 at 21:36 UTC as 8th comment | 3 replies
In reply to:

Jim Panzer: Great info and video, nice wool jersey! :) I had a question about this rolling shutter. I've seen it on other cameras, but does it only happen when you pan the camera fast, or say shooting from a window of a moving car...or does it happen as well if you have the camera on a tripod and someone goes by really fast. Will they be "rolled" as well? Thanks DP folks I love this site!

Thanks Richard for the explanation. So, I was apparently wrong. I thought that the "rolling shutter" technique is used because the consumer cameras do not use fast enough electronics to process the entire (sensor) information at once for each video frame. Well, this would not be possible if still the CCDs were used. Their entire "information" has to be processed at once. So, those older, CCD-equipped cameras do not exhibit this effect?

Link | Posted on Jul 18, 2016 at 23:40 UTC
In reply to:

Jim Panzer: Great info and video, nice wool jersey! :) I had a question about this rolling shutter. I've seen it on other cameras, but does it only happen when you pan the camera fast, or say shooting from a window of a moving car...or does it happen as well if you have the camera on a tripod and someone goes by really fast. Will they be "rolled" as well? Thanks DP folks I love this site!

Well, it rally depends how the information (image) gathered on the sensor surface is read out. The "old" way only a few lines of a frame are read out, so whenever you pane or the subject moves to the side, the vertical lines start to lean to one side. But, at least Sony claims so, that their latest cameras have the entire frame read out capability - so no rolling shutter effect is visible. How this Fuji camera operates in the video mode, I have no clue.

Link | Posted on Jul 18, 2016 at 21:15 UTC

Well, everyone is upset with the price of Leica. But Leica has been always far more expensive. And why not? It is fully made and assembled in Europe if not in Germany. So, how can you compare its manufacturing cost with those "Japanese" cameras made/assembled in China, Vietnam and who knows where else, just not in Japan? But even the products "Made in Japan", like what at least Sony claims, are made/assembled by the "guest arbeiters" from South America.

Link | Posted on Apr 28, 2016 at 18:23 UTC as 304th comment | 4 replies

I believe that it doesn't have even the AF. Actually, this is "Das Leica" as it should be created from the very beginning.

Link | Posted on Apr 28, 2016 at 18:01 UTC as 321st comment | 1 reply
On article The Canon that can: Canon EOS 80D Review (711 comments in total)

I DO NOT UNDERSTAND, you, Canon guys, are weird! Canon finally has brought an excellent DSLR camera and you are so unhappy. Ricoh/Pentax, for example, has it so much easier. Their flag ship, the K-3(II) camera is way behind this newest EOS 80D, but we are so happy with what we have.

Link | Posted on Apr 27, 2016 at 20:54 UTC as 149th comment | 7 replies
In reply to:

thedavidbaillie: I compared the old and new versions side by side at The Photography Show recently on a D810. the new version showed a clear improvement in acquisition time over the old one, enough to make me want to upgrade.

Thanks Samuel. Btw I have the older (non-stabilized) version with the K-mount. If you used that model, how would you compare their optical qualities?

Link | Posted on Apr 19, 2016 at 18:33 UTC
In reply to:

thedavidbaillie: I compared the old and new versions side by side at The Photography Show recently on a D810. the new version showed a clear improvement in acquisition time over the old one, enough to make me want to upgrade.

Acquisition time? What's that? How quickly you can convince your wife that you need it?

Link | Posted on Apr 19, 2016 at 18:24 UTC
On article Canon announces budget-friendly EOS Rebel T6 (1300D) (885 comments in total)
In reply to:

The Squire: Canon should be respected for releasing an affordable camera that's almost as retro as a Leica rangefinder.

That's the role of Pentax!

Link | Posted on Mar 10, 2016 at 17:57 UTC
On article Pocketable APS-C: Fujifilm X70 real-world samples (253 comments in total)

Out of each pair just one picture is O.K. Those straight out JPEGs are to the last one very poor. What's going on? I remember Fuji's OOC pictures to be excellent.

Link | Posted on Feb 8, 2016 at 23:04 UTC as 40th comment | 1 reply
In reply to:

flektogon: Achievements in the electronics are growing almost exponentially, but what about the optical achievements? A sensor with such density would be able to register details equivalent to up to 200 lpm of the lens resolution. Does Canon (or someone else) have such extremely sharp lens? The best lenses for the 35mm film format went up to 100 lpm. How much improvement can we see in the lens design?

Well, the image circle makes a huge difference on the lens resolution. We are talking roughly about the FF-type lenses. But if Canon now comes with the sensor having ability not to suppress those 200 lpm of resolution, I believe that they have corresponding lenses.

Link | Posted on Sep 8, 2015 at 20:37 UTC

Achievements in the electronics are growing almost exponentially, but what about the optical achievements? A sensor with such density would be able to register details equivalent to up to 200 lpm of the lens resolution. Does Canon (or someone else) have such extremely sharp lens? The best lenses for the 35mm film format went up to 100 lpm. How much improvement can we see in the lens design?

Link | Posted on Sep 8, 2015 at 15:28 UTC as 60th comment | 7 replies
In reply to:

RuneMC: Stacked sensor sounds very interesting if it means something like the Sigma sensor/image quality.

4K video also interesting, but 8K would have been even more interesting to extract panorama images from the video with Microsoft ICE 2.0 for example.

And the EVF - please drop it to drop the price significantly.

Will probably keep my RX100 Mk1 and wait for RX200 (whenever that may be) - although if the stacked sensor is exceptional, then I might be tempted...

If almost entire sensor surface can gather the light, I would not be surprised if Sony eliminated microlenses. If only thin filter layer stays on the top of sensor, all the problems with the corners (non perpendicular light beams) alignment would disappear.

Link | Posted on Jun 11, 2015 at 14:50 UTC
In reply to:

RuneMC: Stacked sensor sounds very interesting if it means something like the Sigma sensor/image quality.

4K video also interesting, but 8K would have been even more interesting to extract panorama images from the video with Microsoft ICE 2.0 for example.

And the EVF - please drop it to drop the price significantly.

Will probably keep my RX100 Mk1 and wait for RX200 (whenever that may be) - although if the stacked sensor is exceptional, then I might be tempted...

Well, I do not fully understand to your last sentence, but from the explanations how that new sensor is arranged, it looks like now the entire sensor surface can gather the light, while on the BSI sensors it is only around 75% and on the non-BSI sensors only 50%.

Link | Posted on Jun 11, 2015 at 13:59 UTC
On article Interview: Canon's Chuck Westfall on the new XC10 (352 comments in total)
In reply to:

cgarrard: Sorry I didn't see anyone criticizing this part, so I'm going too...

"Out of all the different cameras that Canon offers, the XC10 probably comes with the most comprehensive kit of any of them. In addition to the basic camera, cables, and things that you might expect, the camera ships with the additional viewfinder, a 64GB CFast card and card reader, and a wireless infrared remote."

Additional viewfinder is a piece of plastic, with plastic in it. I can get a 64GB card on Amazon for..nothing. Imagine how much that costs Canon... and the wireless remote, hah... peanuts. None of that costs Canon much if anything to include.

"These are all accessories that are typically sold as options for other cameras, but they are all included with the XC10. Users can be comfortable that they will find everything....... It also uses the same battery as the EOS 5D Mark III [and several other EOS DSLRs - ed.] making it easier to manage interchangeably with other Canon cameras."

I wouldn't mind to pay even $500 more for it, i.e. anything what is not above CAD 2,000. On the other side I wouldn't want NX1 even for 1000 CAD. So, it's a matter of taste. What I appreciate most on this Canon is a very reasonable pixel density of their sensor. On the other side the lens could be brighter on the long side, something like 1:4.5 at least.

Link | Posted on Apr 24, 2015 at 17:17 UTC
On article 3,200 megapixel LSST camera gets construction approval (257 comments in total)

So, the CCD technology is not dead yet. I would even say that it must be better than CMOS, if in such an expensive project it is preferred. Just wondering when we are going to see CCD in the digital photography again.

Link | Posted on Feb 3, 2015 at 14:50 UTC as 65th comment | 4 replies
On article Olympus Stylus 1s camera announced in Japan (94 comments in total)
In reply to:

Eddy M: Better than Pentax K-S1 lol

Apparently you have no idea what are you comparing. On the other side, the only weak point of the camera is its lens, i.e. very soft at the corners especially at short focal distances. If the new model (1s) has really improved lens, and this improvement is aimed towards the corner softness, than yes, the Stylus 1s will be a great camera.

Link | Posted on Oct 31, 2014 at 19:19 UTC
In reply to:

David Julian: For those of you who want to see more samples to judge the CAMERA by, here is a link to a Photobucket of 12 images at the max resolution available. A few are repeats from the set above, just for a SBS comparison. Some images were improved a bit in Adobe LR5, and some are left at defaults. Take into consideration the viewing magnification, and of course the camera settings data available for each. A few could have been improved with more time to try optimal settings tailored for the subject and conditions, but most were shot literally while on the go.

http://is.gd/Kppiam

They are all very nice pictures and your original pictures are not bad either, except the picture No.18. What was the ISO setting? Had to be very high. And where were your last 12 pictures taken? Damn, when I look outside through the window...

Link | Posted on Oct 21, 2014 at 13:52 UTC
Total: 48, showing: 1 – 20
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