Anastigmat

Anastigmat

Lives in United States San Jose, CA, United States
Joined on Mar 27, 2004

Comments

Total: 309, showing: 1 – 20
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On Fujifilm XF 16mm F1.4 moves from roadmap to retailers article (228 comments in total)

It is only marginally smaller than a 24mm f/1.4 Sigma lens for FF. 85mm x 90mm for the Sigma, 73mm x73mm for the Fuji. That means it is a reverse telephoto design just like the Sigma, even though the Fuji lacks a mirror.

Direct link | Posted on May 4, 2015 at 13:23 UTC as 3rd comment

The 7D is a product of Canon's marketing strategy, which tries to avoid competition among its own products. The 7D tries not to take sales from the 1D-X by keeping the sensor small, and it tries not to compete against the 5KIII by keeping the frame rate higher. What people want is a camera lighter, smaller and cheaper than the 1DX, and it is full frame, rugged, and as fast in frame rate as the 7D, but at the same time cheaper than the 1DX.

Direct link | Posted on Mar 6, 2015 at 17:57 UTC as 6th comment

Unfortunately these lenses cannot be compact because the wide angles apparently are retrofocus designs, meaning they were originally designed for SLR cameras, and their rear elements are not as close to the sensor as are the Leica M series wide angles. Further, the short registration distance means the telephotos will need some extra length in their barrel to compensate. That means, paradoxically, the mirrorless cameras have wide angle lenses that are the same size as SLR cameras, and the telephotos are even longer than similar SLR telephotos.

Direct link | Posted on Mar 6, 2015 at 17:32 UTC as 4th comment | 1 reply

That is an interesting camera. Until now, only Sony has been able to sell sensors to camera makers. Samsung makes its own sensors, and so did Panasonic, but the other independent sensor makers have not had any orders. The Belgian sensor maker with a 20mp full frame may help bring down FF prices further, because other camera makers (e.g. Fuji and Sigma) may use it.

Direct link | Posted on Mar 2, 2015 at 20:45 UTC as 9th comment
In reply to:

alegator1: I like #1, I wonder what kind of f setting you have to use to keep everything in fair focus, amazing depth of field.

wide angle lens and small aperture for maximum depth of field. I like the leopard too. It is such a cutie pie.

Direct link | Posted on Mar 2, 2015 at 09:33 UTC

That is a lovely photo of a charming big cat.

Direct link | Posted on Feb 22, 2015 at 20:20 UTC as 31st comment
In reply to:

aarif: the A-mount is officially dead

The A mount is not dead. Sony is busy developing FE and E mount lenses because there are few of these lenses, and Sony is selling a lot of cameras with these mounts. Sony needs to upgrade its existing cameras that still have the reflex mirror. I think they made a wrong move embracing the pellicle mirror and they may need to go back to traditional reflex mirrors in their furture DSLR cameras.

Direct link | Posted on Feb 20, 2015 at 13:54 UTC

Good to hear that their sensor division is making them money. They are the only competitor left that can still battle with Canon. Pretty much gone are ccd sensor makers Kodak and Dalsa, since Sony's CMOS medium format sensors are cheaper and have less noise at high ISO settings than the CCD sensors made by Kodak and Dalsa. Medium format camera and interchaneable back makers are turning to Sony sensors for this reason.

Sony has also won best camera award for its A7 model, meaning that it has finally caught up with Nikon and Canon in image quality. The A900, Sony's first FF camera, was a bit noisy at high ISO settings. Lots of research and development in the imaging division have turned that around. It is good to have competition in the market place. Because Olympus have failed to make a FF, Sony and the upcoming Pentax FF are desperately needed competition that the consumers need to help drive down FF prices, which have remained sky high for more than a decade.

Direct link | Posted on Feb 20, 2015 at 13:47 UTC as 29th comment
On More things we found cut in half (CP+ 2015 edition) article (137 comments in total)
In reply to:

saiko: Does anyone know how do they cut these lenses in halves?
Do they cut each component separately and carefully assemble them back? Or do they slice up a whole lens at one go?
Always been in mystery to me.

Just take the lens and cut it in half in one operation.

Direct link | Posted on Feb 18, 2015 at 17:29 UTC
On More things we found cut in half (CP+ 2015 edition) article (137 comments in total)

Very informative displays. You can see that the FE mount Zeiss 35mm f/1.4 lens does NOT have rear elements that protrude into the inside of the camera body but is actually recessed within the lens barrel. That could mean that this lens is a retrofocus design, like those made for SLR cameras. The retrofocus design (needed to clear the reflex mirror of an SLR but not needed for mirrorless cameras) is more complex and indeed this lens has more elements than the Leica M series 35mm f/1.4. Retrofocus also reduces vignetting or light falloff in the corners, but its disadvantage is that it is not as compact as the Leica. The additional glass elements also add weight to the Zeiss, compared to the Leica.

Direct link | Posted on Feb 16, 2015 at 04:10 UTC as 27th comment
On CP+ 2015: Hands-on with new Pentax K-S2 article (170 comments in total)
In reply to:

Pedro Ernesto Guerra Azevedo: Pentax is sending very well, is listening and putting in new cameras what your customers want.

They never listened to their customers who demanded a FF camera until now. It is better late than never, but they have been deaf for too long.

Direct link | Posted on Feb 15, 2015 at 15:19 UTC

A really good feature to have is built-in GPS, because it saves space, and it is a very nice feature to have because it allows the shooting location to be pinpointed and revisited easily in the future.

Direct link | Posted on Feb 15, 2015 at 14:33 UTC as 19th comment | 1 reply

The articulated LCD is a welcome sight. Other than that the camera looks rather conventional and similar to the APS-C models it is making. The green button means there will probably be no aperture coupling ring to use older lenses that do not have the electrical contacts. The pentaprism housing does not look like it is interchangeable, so there will be no digital version of the Pentax LX.

What I love to see is OTF TTL flash, which measures and controls flash output by reading light reflected off the sensor, a feature Pentax abandoned after the *ist D and DS. Now all Pentax cameras use P-TTL flash which has a preflash, just like all other camera makers (Canon, Nikon, Sony, Olympus) do. The mockup also shows no evidence of a pop up flash. That would be a serious omission, because Canon has been severely criticized for omitting the same feature. Ultimately though the really important features will be image quality, pixel count and selling price.

Direct link | Posted on Feb 15, 2015 at 14:29 UTC as 20th comment | 1 reply
In reply to:

Nuno Souto: Without a shadow of a doubt: IBIS.

Sony owns IBIS, so it is not going to give the advantage away. Pentax would need to come up with its own version on its own, so it would seem unlikely to resemble Sony's IBIS closely or it may risk a patent infringement lawsuit.

Direct link | Posted on Feb 15, 2015 at 14:20 UTC
In reply to:

PaulinAussie: Please correct me if I am wrong....DA lenses are APS-C lenses while the FA are full frame lenses ??

That is correct, but the 560mm f/5.6 lens does not have a DFA designation. Does that mean it is APS-C?

Direct link | Posted on Feb 15, 2015 at 04:59 UTC
On CP+ 2015: Canon shows off prototype 120MP CMOS sensor article (255 comments in total)

Could be a sensor for the 7d MKIII. LOL

Direct link | Posted on Feb 15, 2015 at 04:42 UTC as 9th comment
On CP+ 2015: Sony shows off new technology article (216 comments in total)

The 28mm f/2 seems to be a reverse telephoto design. There are advantages and disadvantages to this design. The advantage is that it will not have as bad vignetting problems, but the disadvantage is that it is not as sharp or as compact as the Leica M series lens approach.

Direct link | Posted on Feb 15, 2015 at 03:45 UTC as 40th comment | 4 replies

That is encouraging news. Shows that the Pentax FF is for real, not simply vaporware. Quite a change from a while back, when Leica fired its CEO for leaking news about an upcoming full frame, then denied that one is being planned, just to protect sales of the existing cropped frame Leica camera.

Direct link | Posted on Feb 15, 2015 at 03:40 UTC as 25th comment | 1 reply

"Think of a digital version of the rather beautiful Canon P rangefinder..."

Bingo. Mirrorless cameras have the same advantage over DSLR cameras as rangefinders did over the SLR. The lack of a mirrorbox allows a more compact body and better, sharper wide angles similar to the Leica M series. Olympus, which designed its OM series to be as compact and quiet and the Leica M series (in fact Olympus named its OM-1 the M-1 originally before Leica sued them), made the M4/3 cameras the digital camera equivalent of a rangefinder, but with an EVF. Fuji has followed suit with its own camera modeled after the Leica M. So has Sony.All Sony needs is to ask Carl Zeiss to bring back the lenses they made for the Contax G rangefinder. Canon and Nikon seemed to have missed the boat. They failed to realize that the mirrorless cameras should be digital versions of FF rangefinders, and they need to throw away their current products and come up with their versions of Leica M/Contax G rangefinders with EVF.

Direct link | Posted on Feb 11, 2015 at 14:28 UTC as 278th comment

The USA has a different culture than the Japanese. Japan is a small crowded country. Its roads are narrow, and the cars have to be small. The USA is a big country, and people prefer to buy big cars, big SUVs and big trucks over smaller vehicles. The same mentality also exists when it comes to cameras. Most enthusiasts and pros prefer the large bodies of a EOS 1 series or equally large Nikon F-F6 and D1-D4 bodies. They tend to avoid compact cameras like the Nikon FG and EM, not just because they are entry level but also because they are viewed as too fragile. That difference has also affected mirrorless camera sales. In Japan, the mirrorless cameras are a hot seller because people appreciate compact things that take up less space in their tiny apartments. In the USA, the tiny size of the mirrorles is actually a marketing disadvantage. That may be why Canon is not bringing the M3 to the USA. It simply won't sell as well here as in Japan.

Direct link | Posted on Feb 11, 2015 at 14:16 UTC as 286th comment | 25 replies
Total: 309, showing: 1 – 20
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