Martinka

Lives in Czech Republic Prague, Czech Republic
Has a website at www.artofsport.cz
Joined on Oct 21, 2009

Comments

Total: 128, showing: 1 – 20
« First‹ Previous12345Next ›Last »

Need more action photos with longer focal lengths to prove AF-C capability...

Link | Posted on Dec 7, 2016 at 12:08 UTC as 49th comment
On article Sigma 12-24mm F4 DG HSM Art Lens Review (202 comments in total)
In reply to:

maxnimo: If I needed to shoot extra wide I'd just get a prime lens that's sharper than even the Canon zoom, and at half the price of this one.

Any Canon EF 11 or 12 mm prime lens with autofocus out there?

Link | Posted on Nov 23, 2016 at 07:35 UTC

Even more expensive than Sony FE 70-200mm F2.8 GM OSS. Uff

Link | Posted on Oct 19, 2016 at 06:45 UTC as 89th comment | 5 replies
On article Winning images from Red Bull Illume 2016 (90 comments in total)
In reply to:

sh10453: I have no clue how images 7 and 10 became winners.

Haha, that's the ones I like the most :) Pure minimalism.

Link | Posted on Oct 10, 2016 at 08:02 UTC
In reply to:

Zaffa: Ive seen high profile wedding photographers use these at the beach on windy days . I dont understand how they can produce soft light when the light source is so small ?
Im not understanding their benefit over speedlights ? Especially at such a high cost ?
Can someone explain it to me ?
A Yongnuo hss speedlight with a gary fong type dome diffuser vs this bowens portable flash head ? Why spend more ?

Because of much much bigger power?

Link | Posted on Oct 7, 2016 at 06:23 UTC

Mark V already? This must be the most frequently updated camera model ever.

Link | Posted on Oct 6, 2016 at 14:53 UTC as 78th comment | 3 replies
On article DJI goes portable with the Mavic Pro (162 comments in total)

I feel sorry for GoPro and Karma, but that is what it's called wrong time wrong place. Karma should have come 6 months earlier.

Link | Posted on Sep 28, 2016 at 15:59 UTC as 21st comment | 3 replies

What is "SIGMA Protector LPT-11"?

Link | Posted on Sep 19, 2016 at 19:08 UTC as 54th comment | 1 reply
In reply to:

RPJG: Another question from a flash newbie:

Why can't flashes stay on for the (relatively short) time needed to high speed sync with focal-plane shutters? Is that not how the bulbs work? Or, overheating maybe?

Priolite Hotsync flashes have duration 1/200 s and it works very well with every shutter speed up to 1/8000 s.

Link | Posted on Sep 18, 2016 at 08:45 UTC
In reply to:

nathantw: So the product video shows the guy carrying the big pack with all the cable equipment. What they didn't show was the guy having to trek back to his car to grab his camera bag. Where's the camera equipment? The way the Slingshot is packed it doesn't look as though there's any room for camera equipment. I guess you need to hire an assistant.

You think some longer slider will be lighter and smaller? Equipment is always large and heavy.

Link | Posted on Sep 16, 2016 at 16:34 UTC

You defintely need to keep doing this videos in the future, very nice!

Link | Posted on Aug 1, 2016 at 17:37 UTC as 54th comment
In reply to:

zakaria: dpr says
2016 is an Olympics year, and..., Canon and Nikon are fully prepared. Both manufacturers launched brand new flagship DSLRs this spring,
......
Then dpr suggested canon for landscape!!
Is there a an Olympic game called/landscape/?
bias in every where.

For example cycling will happen in the countryside, so there is a good opportunity for landscape shots.

Link | Posted on Jul 31, 2016 at 16:18 UTC
In reply to:

Joe Ogiba: Canon should have used UHS-II SDXC slots. The 2000x UHS-II SDXC cards are very reliable and more than fast enough with much lower cost.
http://www.bhphotovideo.com/c/product/1191363-REG/lexar_lsd128crbna2000r_pro_2000x_uhs_2.html

SD cards can be easily mechanically damaged -> not suitable for heavy pro use.

Link | Posted on Jun 30, 2016 at 06:33 UTC
In reply to:

iudex: Nice. That´s exactly what M 4/3 system needs: fast lenses that take advantage of smaller sensor, thus enabling relatively smaller lenses (compare to Nikkor 24mm/1,4 with 620g and 77mm filter thread).
However given the Leica badge it will cost a fortune, so I do not expect big sales. It´s a pitty Oly or Pany do not make such fast lenses (f1,2-1,4) on their own (i.e. cheaper than Leica).

Comparable FF lens is 24/2.8

Link | Posted on Jun 15, 2016 at 07:53 UTC

I'm surprised that well-established company as Lensbaby needs to run Kickstarter campaing for such a simple product. Unless they don't believe in it and need to test customers demands first (to be honest, I think it's competely useless thing).

Link | Posted on May 25, 2016 at 10:30 UTC as 5th comment
In reply to:

CaMeRa QuEsT: I was expecting Canon to have leveled-up to Nikon's AF performance by now, given how much improvement they have brought forward with their latest sensors' DR, but, alas, Nikon still seems to have the upper hand in AF capabilities and DR across its range, only now it also has caught up to Canon in skin colors while Canon is actually doing worse? Bravo for Nikon. Now if they could only up their QC and have something to counter Canon's Dual Pixel LV AF, they might stave their terrible sales slips of late...

And that is why Nikon D5 adopted same system of AF settings (three parameters defining different cases) like Canon 1D X.

Link | Posted on May 18, 2016 at 18:56 UTC
In reply to:

steelhead3: I am a little confused...shooting at 14fps on the 1dxII, I thought it was only jpeg (not raw+jpeg) or is that the 1dx?

1D X: 12 fps with AF, 14 fps no AF and JPG only
1D X II: 14 fps with AF, 16 fps no AF and RAW or JPG

Link | Posted on May 18, 2016 at 14:25 UTC
On article Day at the track: Canon EOS-1D X Mark II samples (77 comments in total)
In reply to:

Daniel L: Next time try shooting wide open for a change, you are not inches away from the subject. Don't be shy.

Isn't the point is to see accurate the camera focusing is? why shooting everything at F5.6 on a 70-200mm? Forgot how to use aperture?

I shoot wide open most of the time.

Link | Posted on May 18, 2016 at 12:30 UTC
On article Day at the track: Canon EOS-1D X Mark II samples (77 comments in total)
In reply to:

Daniel L: Next time try shooting wide open for a change, you are not inches away from the subject. Don't be shy.

Isn't the point is to see accurate the camera focusing is? why shooting everything at F5.6 on a 70-200mm? Forgot how to use aperture?

Yes, but stopping lens down can "cover" some focus inaccuracy, so to know how the AF really performs you need to shoot wide open.

Link | Posted on May 17, 2016 at 12:09 UTC

Can it sync with fast shutter speeds?

Link | Posted on May 17, 2016 at 08:26 UTC as 15th comment
Total: 128, showing: 1 – 20
« First‹ Previous12345Next ›Last »