DarkShift

Works as a Photography
Joined on Nov 30, 2008

Comments

Total: 305, showing: 1 – 20
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In reply to:

Stitzer23: A 4 year reality TV episode begins.

Yeah, after first weekend in power, Trump and his team seems to be even more idiotic and chaotic than I ever thought they could be. Constant arguing with media about things everybody can see with their own eyes will end being very embarassing experience for him, and USA.

Similar to mr. Putin's ultranationalistic regime, one can find the truth just by thinking of complete opposite of what they preach people. Everytime I chose to follow this logic, I realized the real course of things behind Putin's lies (fe. about war in Ukraine, shootdown of MH17, massive state controlled doping scandal etc.). All were later confirmed by western media.

So if Putins says that Russia was never involved in US election hacking, well you got the picture.

Link | Posted on Jan 23, 2017 at 07:34 UTC
In reply to:

DarkShift: "That must be user error. Warranty will not cover."

That's my experience with Apple products.

I said the device was not dropped or any external force applied that I know of. I bet the screen glass would have broken too, if that was the case.

The alu frame must be too thin by design, or incorrecly produced. The device should obviously not get bent like that in normal use.

Link | Posted on Jan 19, 2017 at 17:09 UTC
In reply to:

DarkShift: Nikon bragging their gear is being used for live streaming of one of the most dumpest man in history?

If this is not FAKE news, I'm considering selling my Nikon gear after reading this. Every single piece of them.

Tsar Putin may have some spare lens caps for free.

Link | Posted on Jan 14, 2017 at 13:12 UTC

Nikon bragging their gear is being used for live streaming of one of the most dumpest man in history?

If this is not FAKE news, I'm considering selling my Nikon gear after reading this. Every single piece of them.

Link | Posted on Jan 14, 2017 at 06:50 UTC as 70th comment | 5 replies
On article Sigma 12-24mm F4 DG HSM Art Lens Review (273 comments in total)
In reply to:

DMichael17: Had hoped to approach the Canon 11-24 Zoom at less money. Should have known. All I can say is that the Canon is absolutely fantastic, every time. Have rented through lensrentals.com for architectural work. Performance across the frame is pretty stunning. Can rent a number of times before paying for either. Might be worth trying Sigma before buying, but for my money, it's Canon based on this.

Btw. there is recent comparison of UWA zooms by Robert Cigala out there. Basically the Sigma competes very well with the Canon 11-24 at the widest setting. Just where it matters most for this kind of lens.

For achitecture the Sigma provides very low distortion and very low CA leves. Easy to work with less post-processing needed.

Link | Posted on Jan 7, 2017 at 12:36 UTC
On article Sigma 12-24mm F4 DG HSM Art Lens Review (273 comments in total)
In reply to:

DarkShift: I think this review might be too concerned about performance at the longer end. That makes not much sense to me because most would buy ultra wide lens for its performance at the wide end. There's better options for 24mm focal length anyway (that allows use of filters etc).

I've got this lens for the D810 and will use it mainly at 12-20mm focal lengths stopped down to f8-11. The Nikon will autofocus in stopped down mode in live view. The Sigma can produce almost distortion and CA free images without need for much post-processing, which is always better. Correcting heavy distortion reduces focal length also, which is not so good if you need wider view. Flare performance seems to be excellent, and better than with the EF 11-24mm (according to Lenstip).

Field curvature and focus shifting might produce some headache, but for best results focusing with live view is the way to go anyway.

Not the Canon 11-24, but have read the reviews and have examined samples.

I use the Sigma 12-24mm with my Nikon D810 for landscapes and architecture. Definitely worth it for its excellent wide end performance, and very low distortion and CA. Combined with ISO64 of the D810 it gives very smooth images with great dynamic range.

Link | Posted on Jan 7, 2017 at 12:27 UTC
In reply to:

dark goob: In fact I think this is an irresponsible headline on DPreview's part. It doesn't guve any context to the problem and makes it sound like a very widespread problem, when it may have been a tiny handful of devices with a faulty component.

How many reports are we talking here? 5 or 10 out of millions? Is that even worth reporting, since surely there are normally at least that many defective units in ANY run of cameras from ANY manufacturer?

Or is it that DPreview, being owned by Amazon, is deliberately trying to smear Apple's reputation?

Apple fanboys :D I can't believe how one corporation has so many blind followers.

Link | Posted on Jan 4, 2017 at 07:41 UTC
In reply to:

DarkShift: "That must be user error. Warranty will not cover."

That's my experience with Apple products.

I have iPad Air 2 with bent frame (like banana). Not dropped or hit with something. No other measured damages, glass is scratch free, everything works. Battery was tested.

I guess it is a result of too slim & weak design and choice of materials (alu frame with glass). Never had this kind of problems with "plastic" devices (Samsung, LG etc) which I've even dropped to ground several times. Also most all people I've known having iPhone 4 has had the glass broken at some point. Not a sign of robust devices...

Maybe Apple has better customer service in USA. Here it seems mediocre (or they don't want to admit that iPad would have design fault).

Link | Posted on Jan 4, 2017 at 07:30 UTC
In reply to:

DarkShift: "That must be user error. Warranty will not cover."

That's my experience with Apple products.

"Maybe the problem is you."

That's what they suggested, too. Apple's warranty will not cover any physical damage, because their devices are apparently built faultless. Well, according to their engineers anyway.

Link | Posted on Dec 30, 2016 at 20:10 UTC

"That must be user error. Warranty will not cover."

That's my experience with Apple products.

Link | Posted on Dec 30, 2016 at 15:52 UTC as 31st comment | 16 replies
On article Sigma 12-24mm F4 DG HSM Art Lens Review (273 comments in total)
In reply to:

DarkShift: I think this review might be too concerned about performance at the longer end. That makes not much sense to me because most would buy ultra wide lens for its performance at the wide end. There's better options for 24mm focal length anyway (that allows use of filters etc).

I've got this lens for the D810 and will use it mainly at 12-20mm focal lengths stopped down to f8-11. The Nikon will autofocus in stopped down mode in live view. The Sigma can produce almost distortion and CA free images without need for much post-processing, which is always better. Correcting heavy distortion reduces focal length also, which is not so good if you need wider view. Flare performance seems to be excellent, and better than with the EF 11-24mm (according to Lenstip).

Field curvature and focus shifting might produce some headache, but for best results focusing with live view is the way to go anyway.

Ultra wide zoom is completely different thing than a 70-200mm lens and used for different situations. With telephoto zoom the longer portion of zoom range is the most interesting and should be the most used, with UWA zoom the wider end. Otherwise the choice of instrument might have been wrong. One doesn't buy a 70-200mm for shooting mostly at 70mm setting. It just don't make sense to me.

For "fast situations" the optical quality of the Sigma 12-24 @ 24mm is certainly good enough. It has much better corner resolution and less distortion than 24-105mm zoom lenses.

Link | Posted on Dec 18, 2016 at 19:18 UTC
On article Sigma 12-24mm F4 DG HSM Art Lens Review (273 comments in total)

I think this review might be too concerned about performance at the longer end. That makes not much sense to me because most would buy ultra wide lens for its performance at the wide end. There's better options for 24mm focal length anyway (that allows use of filters etc).

I've got this lens for the D810 and will use it mainly at 12-20mm focal lengths stopped down to f8-11. The Nikon will autofocus in stopped down mode in live view. The Sigma can produce almost distortion and CA free images without need for much post-processing, which is always better. Correcting heavy distortion reduces focal length also, which is not so good if you need wider view. Flare performance seems to be excellent, and better than with the EF 11-24mm (according to Lenstip).

Field curvature and focus shifting might produce some headache, but for best results focusing with live view is the way to go anyway.

Link | Posted on Dec 15, 2016 at 07:25 UTC as 17th comment | 11 replies
In reply to:

Joed700: Ok, I got the point--the IQ is excellent even at f/2. IMO, a 50mm or longer lens would make the pictures even better....

At least samples that would show how the highlight discs are rendered towards corners with lens wide open like in photos 2 and 3.

Maybe some full length portraits with more nervous background, like some trees closer to the subject and light coming trough the foliage.

Link | Posted on Nov 3, 2015 at 11:34 UTC
In reply to:

Joed700: Ok, I got the point--the IQ is excellent even at f/2. IMO, a 50mm or longer lens would make the pictures even better....

Wide angle lens will also show more of the distant background landscape vs telephoto lens.

Rishi, how do you think the bokeh quality of this zoom compares to the Sigma 35mm 1.4 Art?

Link | Posted on Nov 3, 2015 at 05:31 UTC

Interesting lenses and I hope the new Tamron's have decent f1.8 performance and reliable AF.

Next they should introduce 90mm f1.8 VC and 135mm f1.8 VC please :)

Link | Posted on Sep 2, 2015 at 13:45 UTC as 74th comment
In reply to:

Xentinus: Despite they are 1.8 lense,they are big and heavy!

Samsung 45mm 1.8:
Dimensions (DxL) Approx. 1.75 x 2.44" (44.5 x 62 mm)
Weight 4.06 oz (115 g)

Tamron is designed for full frame sensor and has IS. Optical construction is more complex too.

Also it can focus closer while having similar focal length so the extension must be longer I guess...

Link | Posted on Sep 2, 2015 at 13:36 UTC
In reply to:

arra: Canon on Canon body = sharp from edge to egde and low noise. Canon lens on Sony A7R body = poor edge to edge sharpness and low of noise even @iso100.

You mean that Canon glass somehow causes more noise on Sony sensor?

I have yet to experience that...in fact my TS-E lenses give much better IQ on A7R than with current Canon bodies (the 5DS R is not available yeat). Anyway I'll wait for Sony 50MP camera instead and get better dynamic range with less money.

Link | Posted on Mar 24, 2015 at 18:22 UTC

There's no mention of flash metering, so I assume it can't do that.

I think the price is very high for so simple plug-in device. Dedicated light meters with much better features won't cost too much more money compared to the Lumu.

Link | Posted on Nov 29, 2014 at 17:54 UTC as 12th comment | 1 reply
In reply to:

kadardr: I don't have a Sony right now, I just have a question: why do have the A7s and the two other A7's different mounts. Why the s version is heavy duty and the others are not? Something is not adding up here.

Huh? You don't seem to understand.

If there's any loose compenents between less and camera body, then shutter shock will make them move resulting in more blur. That's why one point tripod attachment may not be enough for A7R and large magnification depending on adapter and lens combo.

Link | Posted on Oct 19, 2014 at 17:36 UTC
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