kjbkix

kjbkix

Lives in United States NJ, United States
Works as a Financial
Joined on Oct 5, 2010
About me:

Semi-pro Photographer & Videographer
Technology Enthusiast

Comments

Total: 16, showing: 1 – 16
In reply to:

Peiasdf: 23mm and 56mm are still using the same markup.

5-stop OIS, never heard that claim before.

Nikon 70-200 f/4 is claiming that.

Direct link | Posted on Mar 8, 2013 at 16:43 UTC
In reply to:

qwertyasdf: I always wondered why ALL camera manufacturers are so conservative and complacent with kit lens apertures. it's been 3.5-5.6 for general purpose and 4-5.6 for telephoto since the beginning of time.
Fuji is the only exception, taking half a step (stop) at a time, now that's progress!

@fatdeeman - those aren't kit lenses

Direct link | Posted on Mar 8, 2013 at 16:42 UTC
In reply to:

Sdaniella: NEX: E-mount version
60 f2.8 [FF FoV 120 f2.8]
30 f1.4 [FF FoV 45 f1.4]

and...

NEX: Sigma w/Canon EF-mount
Plus Metabone Speedbooster EF-to-E (NEX) combined scenario:
60 f2.8 x0.71 = 42.6 f2.0 x 1.5APSC = FF FoV 64 f2.0 !!!
30 f1.4 x0.71 = 21.3 f1.0 x 1.5APSC = FF FoV 32 f1.0 !!!

Aperture Diameters*:
*60/2.8=21.4mm max diameter
*30/1.4=21.4mm max diameter

Why do you have the crop factor as 2x for the 60 and 1.5x for the 30?
also, the crop factor affects the aperture also, not just the focal length.
on MFT -> 60 f/2.8 = 120 f/5.6 on FF
on E-mount -> 60 f/2.8 = 90 f/4.2 on FF

Direct link | Posted on Jan 29, 2013 at 17:30 UTC
In reply to:

AbrasiveReducer: Just skimming but any system of measurement that shows a Sigma lens outperforming a Zeiss lens, even Cosina-Zeiss, seems pretty suspect.

check out the resolution tests of the new Sigma 35 - it's blowing away everything in its FL class

Direct link | Posted on Dec 18, 2012 at 19:27 UTC
On Tower Bridge challenge (2 comments in total)
In reply to:

james skibsted: I guess being in Sydney, Australia won't cut it...

try the Sigma 200-500, I heard you can bounce it off space objects to defy line-of-sight limitations

Direct link | Posted on Oct 24, 2012 at 20:52 UTC

The Travel Angel series is great - this should be no different. I have the A2691T which folds up really small and can fit in my backpack, but also gets up close to 6 feet in height and as low as 12-15".
The monopod feature is really handy also...only a few twists to convert to that feature. Pretty stable too..best with a weight hanging from the center column

Direct link | Posted on Oct 3, 2012 at 13:59 UTC as 4th comment
On Canon significantly improves EOS 7D with firmware v2 article (296 comments in total)
In reply to:

ptl-2010: Great for people who own the camera, but c'mon release the 7d mkII and the 70d already! I'm not about to buy a 3 year old camera when a new system should be just around the corner.

The 7D is still a very capable camera, probably the best crop sensor camera available from a total performance perspective. You can find many available used or refurbished for not much more than a new 60D, and with this upgrade you get some of the features back that make the newer Rebels desirable. Don't hold your breath on a mkII, chances are it wouldn't be all that different anyway.

Direct link | Posted on Jun 29, 2012 at 17:12 UTC
On Quick Guide to Video Lighting article (33 comments in total)

Quick guide with great illustrated examples. Wish there were more like this!

Direct link | Posted on Jun 28, 2012 at 19:37 UTC as 5th comment
On Fast Movement shot ( Car ) challenge (4 comments in total)
In reply to:

Csabulator: I lost my faith in DPreview challenges. Just take a closer look on the 2nd picture. A fake picture almost won the challenge? Shame!!!!!!

wow you're right...i came in 3rd and when viewing on the iPhone both 1 and 2 looked great....upon closer look though it's quite obvious. Also a 1/500th ss could never create blur that long. i think #1 was deserving though.

Direct link | Posted on Jun 13, 2012 at 16:49 UTC
On Tokyo Van Pan in the Fast Movement shot ( Car ) challenge (1 comment in total)

0.5 star vote? really?

Direct link | Posted on Jun 13, 2012 at 16:46 UTC as 1st comment
On Preview:canon-eos-650d-rebel-t4i (274 comments in total)
In reply to:

John Usa: Very angry and disappointed that this newest model comes with the old and slow USB 2.0 instead if the newer and faster USB 3.0.
YUCK.
It is apparent that Canon does not know how to do a proper and thorough update.
Shame on you Canon.

how about you take out the SD card and use a USB 3.0 card reader instead. do people really connect DSLR's directly to the computer for card copies? card readers are so much easier...

Posted on Jun 13, 2012 at 13:52 UTC
On Speedway in the Sports challenge (5 comments in total)

Awesome shot!

Direct link | Posted on Jun 1, 2012 at 19:06 UTC as 5th comment
On Surfer in the Sports challenge (1 comment in total)

Nice shot, but doesn't really show the "Sport" of surfing without the surfer!

Direct link | Posted on Jun 1, 2012 at 19:00 UTC as 1st comment
In reply to:

Duckie: Haunted by the past!

I got many OEM lenses before and almost all of them are now in the unused shelve. For this reason alone I will think twice and inspect samples when more people are actually using it. Using OEM is often a compromise and there are the associated risks. For RRP 1299 (even for a, say, 40% discount) I would not wear the risk. YMMV

you realize OEM means original equipment manufacturer right? i.e. Canon and Nikon. So this comment seems backwards.

Direct link | Posted on Apr 12, 2012 at 15:26 UTC

Hi, not a portrait..

Direct link | Posted on Dec 5, 2011 at 23:26 UTC as 1st comment
On Chariots of Fire in the Frozen Mid-Air! challenge (4 comments in total)

and a highly deserved challenge win. Congrats!

Direct link | Posted on Nov 14, 2010 at 14:32 UTC as 1st comment
Total: 16, showing: 1 – 16