AlpCns2

Joined on Feb 17, 2012

Comments

Total: 220, showing: 1 – 20
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On article Why are modern 50mm lenses so damned complicated? (912 comments in total)
In reply to:

Fourbillionyears: I`m sure that none of my 50 mm lenses, a Leica Summilux R from the 70`s, a Contax Planar 1.4 from the 90's, a Minolta MD 1.2 from the 80's and a Contax RF Opton Sonnar 1.5 from the early 50's, can match these test charts. But I doubt that present-day Frankenlenses can match the image quality of many of the masterpieces of 20th century engineering. Just as the Apollo program put people on the Moon safely in 8 years, and we have now spent about 2 decades arguing about how to do it again. Or F1 "drivers" of today being unable to drive a race car from last century, because it requires using a clutch pedal and mastering heel and toeing. Sic Transit Gloria Mundi.

I'm sure that quite a few people wouldn't even want to be seen buried with the old (zoom) Nikon lenses I use. But I am happy with their performance and IQ when stopped down a bit to normal working apertures. Their primes are even more compact and lovely, also mechanically.

I love these old designs and how they render images. They're all compact, light, robust, easy to maintain and can actually be repaired without requiring a second mortgage. I'm jealous of that lovely Opton.

Link | Posted on May 14, 2021 at 06:38 UTC

Behold, a real photographer.

Link | Posted on Nov 14, 2019 at 08:24 UTC as 69th comment | 4 replies

Nice design, albeit somewhat quirky in places in use, as I understand it. I like their cameras and lenses.

Link | Posted on Oct 24, 2019 at 03:45 UTC as 34th comment
On article Hands-on with the Phase One XT camera system (190 comments in total)

The selfie-stick for this camera must weigh a ton, and cost as much too.

Link | Posted on Sep 12, 2019 at 07:55 UTC as 12th comment

Very nice, no doubt. Very big and very expensive too - the latter a slightly worrying trend.

Link | Posted on Jul 12, 2019 at 05:55 UTC as 27th comment
On article Sigma updates L-mount lens roadmap through 2020 (65 comments in total)

Nice. Like fine wine. Sigma makes some fantastic glass. But prices everywhere are on the rise across all brands and all systems.

How about a series of slightly slower, much cheaper but yet very good f/2.8 prime lenses, like the current DN series for E and M4/3 mounts?

Link | Posted on Jul 12, 2019 at 05:51 UTC as 6th comment | 1 reply

A very interesting development. The "old" Foveon cameras had remarkable IQ. Would be good if that was coming here too.

And a good EVF.

Link | Posted on Jul 12, 2019 at 05:44 UTC as 128th comment
In reply to:

David610: Can someone explain why the Zeiss lenses with five aperture blades did not create 10 point sunstars on the Moon like they do on Earth?

@David610: if you look carefully at full resolution in the top right corner of the astronaut's helmet you clearly see a sunstar from the sun hitting the curved surface of the helmet sunvisor.

You'll enjoy A17PAN22495-514emj more. It's a high-res pano of the moon, with at least one frame straight into the sun as they pan from left to right. The sunstar is certainly present, somewhat dampened from glare. It's also clear that the sun looks like a giant star, which is normal, due to the lack of a thick atmosphere. As a result, there is no Rayleigh's scattering of light by the gases present in the atmosphere of Earth. Therefore the sun looks more like a giant star and due to the lack of scattering (it's a much smaller point-source of light) it's harder to produce sunstars with normal focal lengths. However, in this pano you can clearly see some of it.

You'll enjoy digging through the archives, I think - there's an amazing quantity (and quality) of images.

Link | Posted on Jul 7, 2019 at 07:03 UTC
In reply to:

David610: Can someone explain why the Zeiss lenses with five aperture blades did not create 10 point sunstars on the Moon like they do on Earth?

@David610. There's so many image libraries. Here's an example of a repository: https://history.nasa.gov/alsj/a17/images17.html#LRV

Here's an example of a sunstar in the visor: AS09-19-2982-orig. Another one: AS15-85-11514 in B/W, showing glare as well. There's tons more of course but you'll have to scan the repositories. See the link mentioned for an example, there's plenty more.

Writing NASA is also possible, they're quite helpful. All imagery repositories are available online, in reduced and in full resolution. Enjoy!

Link | Posted on Jul 6, 2019 at 14:28 UTC

Now THAT'S full frame.

Link | Posted on Jul 4, 2019 at 06:11 UTC as 21st comment | 4 replies
In reply to:

David610: Can someone explain why the Zeiss lenses with five aperture blades did not create 10 point sunstars on the Moon like they do on Earth?

There are some pictures showing sunstars, for example in the gold-coated sunvisors of the astronaut helmets. The astronauts received some basic photographic training. Part of that training was to avoid direct sunlight (which is much, much stronger and more destructive in space) as much as possible. Remember how easily they burned out a Vidicon picture tube on one of the missions, just by moving the camera? So generally they avoided that.

Also the films used were pretty slow for minimum grain and maximum resolution, and (hence) apertures not closed sufficiently to create clearly delineated sunstars. Lastly, the cameras contained special optically engraved clear plates in front of the film to allow for photogrammatic measurements.

Hence, flare from direct sunlight was a concern, another reason to avoid it.

Link | Posted on Jul 4, 2019 at 05:52 UTC
In reply to:

Tom K.: One thing I've never seen by the moon hoax conspiracy theorists (a far too complimentary label) is any effort to create photos that duplicate the look of an Apollo photograph using 1969 vintage equipment. They say "It was done on a soundstage". If it's so straightforward, why hasn't anyone done it just to prove that it could be done? I think it would actually be almost impossible.

There are some (intelligent) videos on YT that actually prove that faking the moon landing and everything associated with it was literally technically impossible at the time. The hoaxers are nothing more than a sad bunch of America-haters - and the agenda is obvious, sickening, and -sadly- typical for the times we live in. The ones that are not haters simply don't understand one iota of the science and technology involved.

The complete outrage and tragedy here is that we have gone -degenerated- from people smart enough to envision, design, build, test and fly literal cathedrals of technology and science using nothing but slide-rulers and a few primitive computers to people dumb enough to believe it never happened.

The colossal irony is of course the fact that the same simpletons denying it all are happily using the progress, technology and benefits of that same space program every single day in order to bash it. There's a word for that: pathetic.

Link | Posted on Jul 4, 2019 at 05:30 UTC

Technically very, very impressive and innovative. I am a bit amazed that they are not following the lovely retro design and dials of the other models - not a smart move. Personally I'm not fond of menus, and dials are much, much nicer and immediately clear.

Anyway, not for me, such a pixelmonster. The last mural I printed is over 30 years ago.

Link | Posted on Feb 14, 2019 at 13:22 UTC as 18th comment

The flat-earthers are protesting ;-)

Link | Posted on Jan 19, 2019 at 03:40 UTC as 6th comment | 1 reply

Fuji already has better-than-fullframe. It's called medium format.

Link | Posted on Nov 2, 2018 at 04:02 UTC as 3rd comment
On article Sigma 40mm F1.4 Art beta sample gallery (207 comments in total)

Looks like another Sigma jewel to me - IQ is superb. A big lens, though.

Link | Posted on Oct 3, 2018 at 08:36 UTC as 29th comment
On article Hands-on with the new Laowa lens collection (102 comments in total)

It's a great time to be a photographer. Never before was so much choice -and quality- of gear from so many manufacturers available.

Link | Posted on Oct 3, 2018 at 08:18 UTC as 13th comment
In reply to:

J Parker: It was the fifth time I checked my camera bag.

When I switched to M43, I had to keep checking my camera bag, not simply because it was lighter -- but the difference was so great that I had to be sure that there was a camera in there at all. True story, no exaggeration. (By the way, this is not an anti-DSLR rant -- my favorite cameras to this day happen to be DSLR's that I still shoot with).

But the evolution of photography needed mirrorless. And for me, from day one, it was revolutionary. Panasonic's GF1 was, and remains a masterpiece -- it was as if Leica's had all of a sudden become accessible to everyone who wanted one....

M43 also opened a door to lenses that I would have never discovered otherwise. Pentax's lenses for 110 cameras (about the size of nickel!); combining a Minolta F1.4 with a focal reducer and creating an F1.0 dream lens. I could go on.

From wet plate to digital, DSLR's to M43, we should be thankful, not divisive, about the incredible choices we have.

Very well said!

Link | Posted on Aug 17, 2018 at 07:49 UTC

It'll better be real, real good - but I think Nikon understands that. The result will (then) be better with more options and choices for everybody. An excellent development. We live in interesting times.

I can't wait to hear more about this exciting new line of cameras. I do hope the Fmount-adapters are excellent. Not everybody wants to buy all new lenses.

Link | Posted on Jul 25, 2018 at 08:05 UTC as 203rd comment | 8 replies

Now THAT's a full-frame sensor, for all those shallow-DOF fetishists. Much better than those puny 24x36mm sensors. Comes with a fork lift truck to change lenses.

Link | Posted on Jun 20, 2018 at 07:21 UTC as 21st comment | 3 replies
Total: 220, showing: 1 – 20
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