CopCarSS

CopCarSS

Lives in United States Pueblo, CO, United States
Works as a Steel Estimator
Joined on Mar 3, 2003

Comments

Total: 130, showing: 1 – 20
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Is this the digital equivalent of a film stock being discontinued? Did anyone write a song about Lexar cards that we can all start singing like we did with Paul Simon's Kodachrome on December 31st, 2010?

Link | Posted on Jun 27, 2017 at 23:29 UTC as 32nd comment

If they had made it anymore dramatic, one of the pilots would have had to go inverted to "communicate" with the other.

Link | Posted on Jun 16, 2017 at 22:45 UTC as 108th comment | 1 reply

Towels. The most useful thing for photographers and galactic hitchhikers!

"A towel is about the most massively useful thing an interstellar hitchhiker can have. Partly it has great practical value. You can wrap it around you for warmth as you bound across the cold moons of Jaglan Beta; you can lie on it on the brilliant marble-sanded beaches of Santraginus V, inhaling the heady sea vapors; you can sleep under it beneath the stars which shine so redly on the desert world of Kakrafoon; use it to sail a miniraft down the slow heavy River Moth; wet it for use in hand-to-hand-combat; wrap it round your head to ward off noxious fumes or avoid the gaze of the Ravenous Bugblatter Beast of Traal (such a mind-boggingly stupid animal, it assumes that if you can't see it, it can't see you); you can wave your towel in emergencies as a distress signal, and of course dry yourself off with it if it still seems to be clean enough.”

Douglas Adams, The Hitchhiker's Guide to the Galaxy

Link | Posted on May 4, 2017 at 14:25 UTC as 86th comment
On article Sphere of frustration: Nikon KeyMission 360 review (200 comments in total)

Wow, I don't think I've read a negative review on this site in at least 10 years. Anyone can earn a gold or silver rating at DPR. It takes special talent to get a 2.5 star rating. Way to go, Nikon!

Link | Posted on Apr 27, 2017 at 15:00 UTC as 74th comment | 4 replies

For $250, I'll send a signed print and bottle of Colorado Native Amber Lager. Such a deal!

Link | Posted on Apr 14, 2017 at 17:01 UTC as 6th comment
In reply to:

Favorable Exponynt: This is how they make lenses at Meyer Optik.

Don't forget that Meyer Optik has to run a Kickstarter campaign first so that they can get everyone else to pay them 4 digit prices for their crappy...er...artistic lenses. ;-)

Link | Posted on Apr 4, 2017 at 18:10 UTC

Question: Back in 2007, DPR had an article covering a Kodak sensor patent that included RGB as well as filterless pixels. The idea was that it would blend the benefits of a color sensor and a monochrome sensor. Here's the article:

https://www.dpreview.com/articles/8732455081/kodakhighsens

Did that sensor design die a slow death in Kodak's bankruptcy and liquidation of its intellectual properties or is there some technical reason why this never caught on?

Link | Posted on Mar 29, 2017 at 15:12 UTC as 57th comment | 5 replies
In reply to:

CopCarSS: That the KeyMission series was greenlighted and the DL series was axed because of "profitability concerns" is solid proof that Nikon is completely out of touch with both the camera market in general and their loyal user base in particular.

@kreislauf - Given that Nikon is engaging in a "fundamental company-wide restructuring," I must not be the only one that thinks that they're out of touch. Apparently their board must not be terribly impressed with the performance of the "strategists and management," either.

But I suppose you're correct. I've only been watching the camera industry and talking to individuals who use cameras — from camera phone selfie shooters to top professionals — from the time I was 9 years old. I obviously have no idea what any of those photographers want from a camera. I'll just back out of the way and watch the crowds swarm to the KeyMission 80 that the strategists and management know will be the hottest item selling as we approach graduation/father's day (traditionally the second busiest camera sales period of the year).

The political commentary is not necessary, BTW. I come to DPR to escape politics...

Link | Posted on Feb 13, 2017 at 22:16 UTC

That the KeyMission series was greenlighted and the DL series was axed because of "profitability concerns" is solid proof that Nikon is completely out of touch with both the camera market in general and their loyal user base in particular.

Link | Posted on Feb 13, 2017 at 16:27 UTC as 276th comment | 5 replies
On article Prime or zoom? LensRentals investigates (237 comments in total)
In reply to:

Irakly Shanidze: While being scientifically sound, this blog article does not address factors contributing to the image rendering other than sharpness. Take the same picture with 2/50 Zeiss Planar and Leica Summicron lenses at f/5.6, and images will look different, albeit equally sharp.

LensRentsals never claims to do complete reviews. If you read their piece on third graders (https://www.lensrentals.com/blog/2016/08/my-third-grader-analogy-for-lens-reviews-and-testing/), they even poke fun of themselves (and just about everyone else) when it comes to testing. Roger and his team have never said that they were the be all and end all of lens testing. They merely have a unique opportunity: multiple copies of lenses and optical testing equipment. While other lens performance measures may not be present, I really appreciate the time and efforts they spend offering insight into lenses.

Link | Posted on Feb 13, 2017 at 09:39 UTC
In reply to:

nametaken: If the APD element is supposed to make bokeh more pleasing in portraits, why does the lens only open to F2.8? Is it too difficult to make an APD element large enough to accommodate a wider aperture?

It's about quality of bokeh, not quantity. If you crave ultra thin DOF, this probably isn't the lens for you.

Link | Posted on Feb 9, 2017 at 02:01 UTC
In reply to:

Edgar_in_Indy: Why no comparison to the original Sigma 85mm 1.4 EX? That lens, which I own, is also extremely sharp...it's the sharpest lens I've ever owned. A direct comparison would have been of use to those of us who already own the 85mm EX.

The colored lines represent the various numbers of line pairs. Fewer line pairs relate to lens contrast while more line pairs relate to resolution. Solid vs. dashed is indeed tangenital and saggital. So for your Sigma vs Sigma question, the Art lens is more contrasty and really resolves a lot more detail, especially when you get out to the corners. As Roger said, it's not really even a comparison. The new lens blows the old one out of the water as far as MTF measurements go (keep in mind that MTF is just one measure of a lens, though).

Link | Posted on Feb 8, 2017 at 17:12 UTC
In reply to:

Edgar_in_Indy: Why no comparison to the original Sigma 85mm 1.4 EX? That lens, which I own, is also extremely sharp...it's the sharpest lens I've ever owned. A direct comparison would have been of use to those of us who already own the 85mm EX.

Again, it's covered in the article. Per Roger:

"For those of you who don’t speak MTF, it’s pretty simple. “0” Image Height is the center of the lens, “20” is almost to the corner. Higher MTF is better, and if the dotted and solid lines are close together for each color, that’s good too. There’s a lot more to MTF, but that will get you by."

More comprehensive articles on MTF can be found at a couple of places online:

https://www.lensrentals.com/blog/2014/05/mtf-the-english-translation/

https://luminous-landscape.com/mtf/ (Note: Luminous Landscape is behind a paywall.)

Link | Posted on Feb 8, 2017 at 16:53 UTC
In reply to:

Edgar_in_Indy: Why no comparison to the original Sigma 85mm 1.4 EX? That lens, which I own, is also extremely sharp...it's the sharpest lens I've ever owned. A direct comparison would have been of use to those of us who already own the 85mm EX.

Edgar, it's the very first comparison on Roger's page. Roger adds a short commentary to the MTF comparison:

"First, let’s compare the new Sigma Art (on the right) to the older Sigma 85mm f/1.4 lens (left). It’s no comparison."

Link | Posted on Feb 8, 2017 at 16:00 UTC
In reply to:

Azathothh: T5.6? lol

@Azathothh When you label it as an f5.6, your self assessment that you know the difference is suspect.

@J A C S I'm not a Sony fanboy. I'm curious about some of their products, including the 135 STF and now this. My comment was only about the OP laughing at something that's inherent to the design of the lens.

Link | Posted on Feb 8, 2017 at 14:46 UTC
In reply to:

Azathothh: T5.6? lol

It's not an "f5.6" lens. It's an F2.8/T5.6 lens. You're clearly not understanding what this lens is about so it's probably best that you save your money and let others who know what a unique lens this is enjoy the benefits of what it offers photographically.

Link | Posted on Feb 8, 2017 at 12:56 UTC

I was always envious of the Minolta/Sony STF lens. Now there's one for the FE mount. I'm one step closer to picking up one of the A7 series (which had already piqued my curiosity)...just to use that lens. Kudos, Sony.

Link | Posted on Feb 7, 2017 at 22:36 UTC as 39th comment
In reply to:

Azathothh: T5.6? lol

That's what happens with apodization filters. Light is sacrificed due to the presence of the filter and the transmission number drops. So I'm not quite sure what you're laughing out loud about.

Link | Posted on Feb 7, 2017 at 22:30 UTC
In reply to:

TonyPM: Is it 35mm?

I once read a story -- possibly Internet apocrypha -- about some pre-WWII era Rodinal that was found in a basement somewhere in Europe. The gentleman who found it decided to try it just to see what would happen. Lo and behold, it worked like new. I don't know if it's true or not, but I know I've used bottles that were well over a decade old and noticed no problems. It's one of the endearing qualities of that particular developer.

Link | Posted on Feb 3, 2017 at 15:28 UTC

It's always nice to see new films, especially something a little different. I do hope they can get the scratches under control, though.

Link | Posted on Feb 2, 2017 at 19:02 UTC as 31st comment | 1 reply
Total: 130, showing: 1 – 20
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