Alec

Alec

Lives in United States New York City, NY, United States
Works as a Photographer / imaging artist
Has a website at http://karasevstudio.com/
Joined on Oct 24, 2000
About me:

* More architectural and recreational sports photography in the off-season (skiing and scuba);
* Roll out blog feature on the web site
* Put articles, more photos and video online
* Minolta archive!

Comments

Total: 161, showing: 1 – 20
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You've lost your negatives and all you have are some stained, warped 4x6's? Now you can lose those too, because, iPhone

Direct link | Posted on May 7, 2015 at 21:35 UTC as 6th comment

I reckon the rationale behind the separate focusing adapter is flexibility:
- other mounts
- chipped version possible in the future
- af version possible in the future

Direct link | Posted on May 5, 2015 at 19:27 UTC as 49th comment

You fools, IT'S SIGNED BY THE ARTIST. That makes it all totally legit.

Assuming the hand is a replica of the artist's, he should maybe get out of the house some more. You know, into `en plein air`.

Direct link | Posted on May 4, 2015 at 14:53 UTC as 42nd comment
In reply to:

uzman1243: Does this have OSS?

Video is a fair point actually. But it brings the consideration of the reality of the market. Will this still fairly pricey, non-zoom lens with no Mod 0.8 teeth on the focusing ring and no iris ring at all, realistically be a popular video lens for the types of video-makers who rely on OSS as the method of choice to address non-deliberate camera shake?

Direct link | Posted on Apr 26, 2015 at 22:11 UTC
On Yongnuo creates near-clone of Canon EF 35mm f/2 article (169 comments in total)
In reply to:

AlanG: The AF in my Canon 16-35mm can't be repaired due to the part being discontinued. So here's hoping that Yongnuo's clone AF parts can fix my lens.

Yup. Relying on tiny piezo crystals to strike a hard surface and thus move mass - what a big "surprise" that this mechanism has an inherent expiration date.

Direct link | Posted on Apr 25, 2015 at 18:41 UTC
On Yongnuo creates near-clone of Canon EF 35mm f/2 article (169 comments in total)
In reply to:

AlanG: The AF in my Canon 16-35mm can't be repaired due to the part being discontinued. So here's hoping that Yongnuo's clone AF parts can fix my lens.

My first SONY 27-70/2.8 USM also gave up the ghost (and was replaced). I was saying from the start, USM/SSM inherently has a finite life span, unlike the "screw drive" in the lens (where with each body upgrade you'd get a fresh AF motor - one - for all lenses).

There are cases when the silent USM motor is worth it (despite that sooner or later it will brick the lens), but they're far fewer than what people appreciate. I don't expect anything to happen to my screw drive Minolta and Sony lenses - whereas I'd think twice buying a SSM/USM lens for long terms use - esp. second-hand.

Direct link | Posted on Apr 25, 2015 at 13:43 UTC
In reply to:

uzman1243: Does this have OSS?

I don't think so. But on such a wide angle, I doubt it would bring a lot of benefit. Any time a degree of freedom is added to an optical element or group inside the lens, tolerances take a hit - so adding OSS is something that ought to be weight carefully (quality gain vs loss). It's not a mere wishlist box one ticks.

Direct link | Posted on Apr 25, 2015 at 11:13 UTC
In reply to:

Cytokine: Why only 1.8 on the 85mm? That and the low price for a Zeiss Zeiss Probably means moulded optics. Average bokeh but probably very sharp and good resolution. No f1.
2 or even f1.4 but that means there will be little if any CA or Locas. But Canikon can do this better for a lot less.

.

It simply may be that they also want to better differentiate from a possible future 85mm f/1.2.

Direct link | Posted on Apr 24, 2015 at 17:23 UTC
In reply to:

Dimit: German made I presume..great choise..I love the brand,I love the A7 series combination with.

I am with you on old lenses, where the distance display was mechanically a part of the main focusing group which moved on a helicoid track (where focusing and rotation are rigidly and precisely mechanically linked).

I think the OLED display is relevant for future lenses. Basically the lens elements move directly forward and back, rather than twist in threaded tracks. As a result, a mechanical focusing scale would have to be "faked out" by a separate motor, and would add a layer of imprecision, lag, etc. (Not to mention the greater flexibility of OLED to show only units you want, as well as potentially be configured for a diff. circle of confusion etc.)

Direct link | Posted on Apr 24, 2015 at 17:20 UTC
In reply to:

Jonathan F/2: I had an A7 and returned it. I love mirrorless, but all the great advantages of the format go out the door with the bigger sensor in terms of both camera and lens sizes. If someone wants to go FF, I think they are better off getting a FF Canon/Nikon and any of the Sigma 24/35/50 Art lenses.

To me, full-frame mirrorless is more than a smaller full frame.

Size of a camera oriented towards serious work, the way I see it, has more to do with its proper balance and a sufficient interface with the human body holding it, for maximized stability and minimized fatigue.

Mirrorless still has some ways to go to match SLR in terms of viewfinder fidelity and lag, and AF speed. However the writing is on the wall: a mirror is a legacy tech that was necessary for film and early digital sensors. As the sensors and surrounding tech mature further and further, the mirror will be less and less relevant.

Direct link | Posted on Apr 24, 2015 at 17:14 UTC
In reply to:

Lapkonium: Meh, another subpar chinese fiddly toy.

Thank you for this piercing insight, sir. Do you have a twitter account where we can all subscribe to these nuggets of wisdom to make sure we don't miss any? Esp the chinese [sic] who assemble iPhones to tolerances that Zeiss and Leica can't match currently.

Direct link | Posted on Apr 18, 2015 at 16:25 UTC

The way I see it, whichever maker introduces an action cam with whole-field sensor readout, will rule the higher end space. All other features are pretty much commodity these days - anyone can put them in. ...Whereas being able to avoid the jello effect opens up many POV and mounting options that were until now unfeasible or expensive to implement.

I like the battery life on this thing and the fact that everything is integrated without external housing needed.

Direct link | Posted on Apr 15, 2015 at 16:42 UTC as 15th comment
On Red introduces 'Weapon' camera with 8K sensor option article (104 comments in total)
In reply to:

princecody: Even if it does have 8k what tv or screen can render it?

Unlike film that can be shot once and re-scanned at higher and higher resolutions (with increasingly sophisticated algorithms doing better and better with grain interpolation), on digital you're stuck with the resolution at which you shot. So if you invest a lot of money in crew, props, actors, etc., you want your footage to last at least through one TV format upgrade. It's just common sense.

Direct link | Posted on Apr 14, 2015 at 03:51 UTC
In reply to:

Alec: On a related note I just got a fancy wooden toilet seat. Anyone want to take a look?

awesome - that's exactly what my seat cost, too!

Direct link | Posted on Apr 11, 2015 at 05:52 UTC

On a related note I just got a fancy wooden toilet seat. Anyone want to take a look?

Direct link | Posted on Apr 10, 2015 at 20:19 UTC as 30th comment | 2 replies
On Go wide! Hands-on with Canon's 11-24mm F4 L article (227 comments in total)
In reply to:

tuomov: If you desire a ultra wide(say below 15mm) rectilinear lens, or rather desire the image it produces, then it's better to buy a sharp Fisheye, say the new FF Samyang 12mm f2.8. With a fisheye you have a possibility to have the absolute widest FF shot(if needed), and additionally you can rectilinearize the fisheye afterwards to your liking, producing either a fully rectilinear 10-15mm equivalent, or even wider semi rectilinear shot. You also get more light with the fisheye and in my experience a sharper image, it's much more difficult to optically remove the barrel distortion thus keeping the distortion in the lens and removing it with software produces a sharper image, the Samyang fisheyes for crop and FF sensors are amazingly sharp and cheap, you don't basically have to focus them in normal shots...

I agree. Future cameras may in fact have the in-camera software to do this. As we move further into the future I see 200MP+ cameras whose megapixel counts are used in conjunction with SUPER sharp but simple lenses (thus high microcontrast, wide aperture, high flare resistance) but produce all sorts of distortions, which are fully correctable digitally.

Direct link | Posted on Feb 6, 2015 at 17:42 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2975 comments in total)
In reply to:

GodSpeaks: One issue is that diffraction limits will set in around f5.6. That, and what lenses can resolve properly on a 50MP sensor?

As someone who owns both 24MP and 36MP FF cameras, I can state that 36MP is already too much, for me.

One thing I did learn was that technique is VERY important at 36MP. I can only guess how very very important it will be at 50MP. This is a tripod, not hand held camera.

Ivan, I completely agree. Not everyone looks at cameras as practical tools and "it is what it is - what can I do with it?". Many folks make an emotional investment in a view what an ideal camera should be like, even if not all of them would pay for that ideal camera if made today, or use it to create a credible body of photographic work that would be otherwise unattainable.

Direct link | Posted on Feb 6, 2015 at 15:46 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2975 comments in total)
In reply to:

AbrasiveReducer: Whoops! The problem is, the person who desperately "needs" 50mp is the same person who also wants lots of dynamic range.

Same for the ISO. Nobody needs 100,000,000 ISO but having a low ISO range suggests one thing: noise.

What a brag fest we will be treated to between the D810 owners and the 5Ds owners. DxO says this; DxO says that. Oy vey.

What we really need is interchangeable sensors. A 25ISO 100MP one with no low pass filter, and a 20MP high ISO one. Maybe a 16:9 native 4K full-frame readout one just for movies (slightly wider than 36mm because it's narrower than 24mm)

Direct link | Posted on Feb 6, 2015 at 05:49 UTC
On Canon EOS 5DS / SR First Impressions Review preview (2975 comments in total)
In reply to:

GodSpeaks: One issue is that diffraction limits will set in around f5.6. That, and what lenses can resolve properly on a 50MP sensor?

As someone who owns both 24MP and 36MP FF cameras, I can state that 36MP is already too much, for me.

One thing I did learn was that technique is VERY important at 36MP. I can only guess how very very important it will be at 50MP. This is a tripod, not hand held camera.

Ever since the 12MP days the debate has raged on regarding how much the lenses resolve. The answer is pretty simple: once you've reached a point where you don't need the low-pass filter OR software to cancel the moire with any and all subject matter, you've reached the lens resolution limit. Clearly Canon knows we're not there at 50MP. Arguably somewhere around 0.2...0.5GP we'll be there.

Direct link | Posted on Feb 6, 2015 at 05:46 UTC
In reply to:

Nordstjernen: A lot of people here are saying that many of the lenses look huge. Is there any spesifications for the lens size and weight avaiable?

These are full-frame lenses. The short rear flange distance of the Alpha mirror-less makes wide and normal lenses a bit shorter, but it does relatively little to reduce the front element diameter of telephotos and zooms.

ALSO, I think marketing plays a role - maybe they did focus groups and the consensus was people would expect to pay less for a diminutive lens...

Direct link | Posted on Jan 10, 2015 at 16:15 UTC
Total: 161, showing: 1 – 20
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