GlobalGuyUSA

GlobalGuyUSA

Lives in United States Los Angeles, United States
Works as a International Trade
Joined on Jun 24, 2007
About me:

My business is marketing international trade, not photography. My hobbies are primarily graphic art and then photography. Take comments with a grain of salt. I'll learn as much from you as I hope to share with others.

Comments

Total: 127, showing: 1 – 20
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On 44 24mm-Rishi-02-F5.6 photo in dpreview review samples's photo gallery (15 comments in total)
In reply to:

deep7: A great, dramatic shot which shows the lens is easily sharp enough. However, there is strong colour fringing on the edge of the buildings and something weird going on around the crests of the mountains. Plus the sensor isn't really up for that much pushing but so what, the image is very striking anyway.

I would like to see an extreme corners vs. the Nikon (in a very controlled setup, not general testing) at 15, 16, and 17.

Also, I would like to see an extreme corners with the Nikon at 14mm and then cropped to look like the Tamron at 15mm.

(Just intellectually curious, I'm not making any predictions).

Direct link | Posted on Feb 27, 2015 at 07:02 UTC
On 44 24mm-Rishi-02-F5.6 photo in dpreview review samples's photo gallery (15 comments in total)
In reply to:

deep7: A great, dramatic shot which shows the lens is easily sharp enough. However, there is strong colour fringing on the edge of the buildings and something weird going on around the crests of the mountains. Plus the sensor isn't really up for that much pushing but so what, the image is very striking anyway.

Ah, yeah, there are some large adjustments. Do you guys ever post .NEF (or whatever RAW) files with these sample galleries? Or could you in the future?

I always appreciate the editing, but I think it would be fun (and interactive) with your user base if we could play around with it too and see what the camera and lens are capable of. Just a thought.

Direct link | Posted on Feb 27, 2015 at 06:59 UTC
In reply to:

GlobalGuyUSA: This lens seems to perform very well.

Looks like a good lens!

But contrary to some of the rumors, it doesn't seem to perform "much" better than the the 14-24 (although in a few ways it is better). For example, it was rumored that it doesn't produce the "rainbows" phenomenon. But it clearly does (and less "cute" than the Nikon versions):

http://www.dpreview.com/galleries/reviewsamples/photos/3149809/27-dan_2838_15mm_f16?inalbum=tamron-sp-15-30mm-f-2-8-di-vc-usd-samples

http://www.dpreview.com/galleries/reviewsamples/photos/3149811/29-dan_2860_15mm_f20?inalbum=tamron-sp-15-30mm-f-2-8-di-vc-usd-samples

Some of the sunstars look nicer, though.

After reviewing most the images, I don't think someone would be giving up much if choosing this lens over the 14-24/2.8. The extra tele-length can be extremely helpful in producing a semi-wide-normal effect at 28-30mm (my FAVORITE lengths), and the wide end is more than wide enough (after 17mm things get pretty weird anyway, and 15mm is QUITE good). The bokeh isn't anything to write home about, but quite decent for this wide and complex a lens (I'd be more critical on a prime). Interested to read the measured results on the more technical attributes later, but they all seem totally acceptable for most uses.

The VR, on the other hand, and the excellent price... you have to hand it to Tamron. If this thing is build well and durable, then its a winner.

Direct link | Posted on Feb 27, 2015 at 04:56 UTC
On 30 Richard_2657_15_f2.8 photo in dpreview review samples's photo gallery (1 comment in total)

The bokeh is looking totally acceptable here. A bit "cloudy" but that might be the subject matter itself or contrast.

Pretty good for a super-wide!

Direct link | Posted on Feb 27, 2015 at 04:51 UTC as 1st comment
On 44 24mm-Rishi-02-F5.6 photo in dpreview review samples's photo gallery (15 comments in total)
In reply to:

OlavM: Wow. Check original, outer half of frame. To me, this is nothing but superb.
(start saving ... :)

I have to agree. I have the 14-24, and in some ways (based on these images), I can see it performing slightly better, but in other areas, I couldn't tell a damn difference, but the most impressive thing, of course is the VR and longer tele. I don't think anyone would be sacrificing much with this Tamron.

Direct link | Posted on Feb 27, 2015 at 04:49 UTC
On 44 24mm-Rishi-02-F5.6 photo in dpreview review samples's photo gallery (15 comments in total)
In reply to:

deep7: A great, dramatic shot which shows the lens is easily sharp enough. However, there is strong colour fringing on the edge of the buildings and something weird going on around the crests of the mountains. Plus the sensor isn't really up for that much pushing but so what, the image is very striking anyway.

I thought he was complaining about over sharpening. Is that edge on the mountains and the building from sharpening?

Or is it from boosting something else (curves perhaps)?

The trees look very mushy, but these are great pics so far. I think this lens is more than good enough for most uses. Whatever optical compromises there are are sure to be offset by a very nice price and of course the addition of VR on a 2.8 superwide!

Direct link | Posted on Feb 27, 2015 at 04:47 UTC
On 45 24mm-Rishi-03-F2.8 photo in dpreview review samples's photo gallery (2 comments in total)

I really like this image for some reason.

Impressive city detail at f/2.8. How far away was the focus point? I never seem to get my depth of field this good.

Direct link | Posted on Feb 27, 2015 at 04:42 UTC as 1st comment

This lens seems to perform very well.

Looks like a good lens!

But contrary to some of the rumors, it doesn't seem to perform "much" better than the the 14-24 (although in a few ways it is better). For example, it was rumored that it doesn't produce the "rainbows" phenomenon. But it clearly does (and less "cute" than the Nikon versions):

http://www.dpreview.com/galleries/reviewsamples/photos/3149809/27-dan_2838_15mm_f16?inalbum=tamron-sp-15-30mm-f-2-8-di-vc-usd-samples

http://www.dpreview.com/galleries/reviewsamples/photos/3149811/29-dan_2860_15mm_f20?inalbum=tamron-sp-15-30mm-f-2-8-di-vc-usd-samples

Some of the sunstars look nicer, though.

Direct link | Posted on Feb 27, 2015 at 04:36 UTC as 5th comment | 2 replies
In reply to:

Bjorn_L: Since conflicting info is out there, I contacted Tamron to find out if the lens is sealed. It is not.

From Tamron
"Thank you for contacting Tamron! The 15-30mm has moisture resistant design that helps prevent water from penetrating the lens. It is not however sealed to be water or weather proof so it is still possible for moisture to get in the lens. The design is intended to reduce the risk of damage should the lens come in contact with water but I would highly recommend keeping it away from rain or prolonged high humidity if you can."

Someone needs to fix these "weasel words" in the Photo industry and create universal standards for marketing (what? 6 billion EX S VR OS N L WR initials is helpful? lol).

Its one of the reasons why DSLRs aren't picking up more users. I remember when I first started DSLR photography 7 years ago -- it would have been EIGHT years ago, but i was so damn overwhelmed by "what the hell does all this mean!?!?" that I post poned my purchase for a year.

It would be nice if there were industry standards and if this industry actually acted like a mature industry, instead of startups with their own directions and no concern for the consumers perspective on the overall market.

Direct link | Posted on Feb 27, 2015 at 04:29 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

Jonathan Wilson: Looks great. I'm certainly looking for something around this focal length but sadly there are apparently no plans to make this in Pentax mount.

Scott, it might be win-win; but no one pays Sigma to make mounts (it would be pretty ridiculous), because Sigma is known technology thief -- and was even forced to pay settlements, for example, reverse-engineering and stealing Nikon VR technology, which Nikon won in court. (Sigma theft has cost Nikon over $100 million, but the Japanese courts decided to limit the settlement.)

But it would be ridiculous to pay Sigma to develop a company's lenses, when Sigma is a known technology thief. THAT BEING SAID, Sigma does help consumers save money and therefore contributes to a flourishing lens pool (which is probably what the Judge considered in reducing the punishment against Sigma). But Pentax needs to have a critical mass of sales to make their own lenses efficient to make.

http://www.slrlounge.com/nikon-wins-1-5-billion-yen-lawsuit-sigma-vr-patent-infringment/

Direct link | Posted on Feb 22, 2015 at 19:42 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

Imagreal: We don't talk about CA.
We don't talk about sharpness.
We don't talk about vignetting.
We don't talk about distortion.
We don't talk about anything measurable.

Let's do some cherry picking on Bokeh
and honor our beloved Canikon glasses!

I was referring to the OP of this thread, not you Rishi. This is trolling thread (read the OP). I understand your question. Again, my comments were based on the photos I saw in the gallery (and I didn't look at all of them, I only opened about 10 or 12; for all I know there was magic in the ones I missed). And I dont know what bokeh other people like. I hit some of the busier weirder looking ones that look that way -- to me. The pics at the top of this page, by contrast, look acceptable to me.

As I said, your feedback made me look closely, and its possible im seeing some issues because of the Snow (i never shoot in snow, im in Southern California) and the Trees (hell, I dont even have trees.. this is Los Angeles).

Man, that trip to Japan looks lovely though! Can't wait to go there some day.

Direct link | Posted on Feb 21, 2015 at 07:08 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

FamlilyPhotographer: ok sigma...shut up and take my money !!!!!!!

@RISHI -- Okay, then we are talking about the same thing.

Yes, Rishi, I'd say that's my experience too. I didn't try it with the 85/1.4G when WALKING towards something -- I only tried it with 50/1.4 ART. Now having tried it with the 85/1.4G, I have the same experience you have. The Nikon 85/1.4G is perfect. 95%, I'd estimate, on track (with only a very, very tiny hunting distance).

But the 50/1.4 ART is a totally different animal. Its micro-hunting range is about 4 times bigger than the 85/1.4G (at the same distance.. this could be an effect of the 85's magnification of the object in focus... so maybe only twice as large of a range), but its also slower. The AF point can easily slip in front of/behing the subject, while the 85 stays on it.

So yes, the Sigma 50/1.4 ART is about 50% in focus, 50% not.

But I think this is a function of the hunting range distance and the slow speed of the hunt. The 85 jitters, the 50 roams.

Direct link | Posted on Feb 21, 2015 at 07:01 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

Imagreal: We don't talk about CA.
We don't talk about sharpness.
We don't talk about vignetting.
We don't talk about distortion.
We don't talk about anything measurable.

Let's do some cherry picking on Bokeh
and honor our beloved Canikon glasses!

Ah, well, I was only looking at the gallery, not comments. Gallery doesn't indicate body settings, just basic exif. Thanks for sharing. That is good news.

Nikons are pretty heavy on vignetting too, generally. I don't personally mind vignetting; its like bokeh, everyone has a different opinion. [But seriously, man, let's drop the bokeh talk. I feel like its getting to trolling levels here. Someone can have an opinion without people stalking them constantly to say the opposite. I have no idea what kind of bokeh you like. Maybe its Sigma's bokeh. In that case, I'm sure you love the 50/1.4 ART and 35/1.4 ARTs bokeh as well -- a lot of people sure as hell don't. NO TROLLING NEEDED. Thanks, bye!]

Direct link | Posted on Feb 21, 2015 at 06:38 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

Imagreal: We don't talk about CA.
We don't talk about sharpness.
We don't talk about vignetting.
We don't talk about distortion.
We don't talk about anything measurable.

Let's do some cherry picking on Bokeh
and honor our beloved Canikon glasses!

Fair enough, Rishi. I feel like some people are saying I hated the lens or something, just because I didn't like its bokeh. But quite the contrary (the OP, Imagrael, actually made other comments elsewhere to me, similar as you).

I've already said (multiple times) that for the cost, this lens should be excellent. There is no way that the Nikon will be TWICE as good. That's why you look for "Secret Sauce." I don't know what is this lens's "Secret Sauce" yet. And to me the bokeh looks stretched out at the sides and a bit busy. I'm willing to consider this is a peculiarity of the Snow and the Leaves, in bright contrast....?? Unlike the OP of this thread, I'm not being emotional about it, just forming a first draft opinion.

In case of those other qualities, which others are lauding, including yourself, such as Vignetting... to me, I can't comment on that yet, because Vignetting can be affected by the Body Settings and method of Processing, which DPR did not label.

Direct link | Posted on Feb 21, 2015 at 06:05 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

Imagreal: We don't talk about CA.
We don't talk about sharpness.
We don't talk about vignetting.
We don't talk about distortion.
We don't talk about anything measurable.

Let's do some cherry picking on Bokeh
and honor our beloved Canikon glasses!

You're crazy. Don't put your ego in it. People can have an opinion on bokeh (which is a highly subjective thing to begin with), while simultaneously admiring this lens for its sharpness at close-distances from the examples.

The reason no one is talking about other measurable things, is because no one has measured them yet. The one thing we can easily see is bokeh, because these are mostly shot wide open.

Direct link | Posted on Feb 20, 2015 at 22:16 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

GlobalGuyUSA: Regarding bokeh:

The sharpness is really quite good -- well WORTH the price (excellent value lens to be sure), especially for landscape. But if you are buying this lens for Bokeh (f/1.4 afficionados), you'll want to compare your options. The Landscape photographer won't care about this issue (but some others might). The bokeh up-close is pleasant, but mid-range to far-range, its quite goofy:

http://g1.img-dpreview.com/B5779F52AB574F8A9EDB16F1BCCD337C.jpg

http://g4.img-dpreview.com/1E8BFD24FC234E78A1B333A3B8E4F3E8.jpg

^Not all of them. Nikon 24/1.4G:

http://3.static.img-dpreview.com/files/p/E~forums/55330154/a28ffb62c8724cf18cda49af387e14f8

Direct link | Posted on Feb 20, 2015 at 09:32 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

FamlilyPhotographer: ok sigma...shut up and take my money !!!!!!!

I get a lot of "micro-hunting" I'd call it when focusing in general with this lens (similar to the Nikon 85/1.4G), which is a bit more than other lenses, but generally not bad or far off. Continuous mode made it worse on the D700, but I can't see much of a difference on the D810, which somehow seems to do better. Single focus is obviously more confident, but still gets a bit of a jitter. As far as tracking and moving subjects, I'm not feeling that is this lenses forte, as it goes out of focus fast. And I may not be understanding the technical behaviours I'm seeing from an engineering perspective to comment. Basically, I wouldn't use this lens when walking towards something, haha.

Direct link | Posted on Feb 20, 2015 at 09:00 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

FamlilyPhotographer: ok sigma...shut up and take my money !!!!!!!

I made a response, but after reexamining the issue, I'm not sure.

Direct link | Posted on Feb 20, 2015 at 08:41 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

GlobalGuyUSA: Regarding bokeh:

The sharpness is really quite good -- well WORTH the price (excellent value lens to be sure), especially for landscape. But if you are buying this lens for Bokeh (f/1.4 afficionados), you'll want to compare your options. The Landscape photographer won't care about this issue (but some others might). The bokeh up-close is pleasant, but mid-range to far-range, its quite goofy:

http://g1.img-dpreview.com/B5779F52AB574F8A9EDB16F1BCCD337C.jpg

http://g4.img-dpreview.com/1E8BFD24FC234E78A1B333A3B8E4F3E8.jpg

^You want cartoon glasses, a fake nose, and mustache too..?

Its goofy. "Distracting." Like Goofy. You ever watch Disney as a kid? I was trying to politely not say "bad," which is what I really should have said, but if I'm objective, its actually acceptable, so I'll settle for the word "goofy," instead. Someone else can call it "bad;" I'm not there yet. But in some cases (not all), it does distract from the rest of the image. You don't need arrows, the bokeh practically calls you to itself.

Also, I think I should modify my response -- its not just the far-range bokeh, its all the bokeh. It just tends not to be as pronounced on near objects and the closer it is to the focus point, but gets goofier the further away you get.

Direct link | Posted on Feb 20, 2015 at 08:33 UTC
On New samples from the Sigma 24mm F1.4 DG HSM Art lens article (214 comments in total)
In reply to:

Xbrc: Any comment about coma distortion? 24mm F1.4 can be nice for milky way astrophotography, but any coma makes it barely usable, and it is something that wouldn't bother any other kind of shot...

Isn't the Samyang a better option, if using for Astrophotography?

I wonder how this one is on flare, additionally.

Direct link | Posted on Feb 20, 2015 at 05:25 UTC
Total: 127, showing: 1 – 20
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