July 24, 2014, 10:32:25 PM

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Messages - Northstar

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376
 

Quote
Thanks for sharing that.  It reinforces in my mind the unrealistic image sold to the public on theoretical transfer rates, when an upgrade from USB2 to USB3 yields a 5x practical speedup, instead of the theoretical 10x speedup.  That is 50% slower, which is nothing to sneeze at.


Yes...unrealistic, I agree.

Also, the same perception is being marketed by the card makers when you consider that most photographers are still probably using usb2.0, which means their 160mbs card is only transferring at 40 mbs!

377
Animal Kingdom / Re: Show your Bird Portraits
« on: February 18, 2014, 06:28:49 AM »
Shots from Florida and the like should be banned!  ;)  Here I sit snow-bound at -10 C and in spite of wandering outside today not a single bird of any description - well actually I did see a magpie far away. :(

Jack
Plus 1
I wandered through the local woods for 4 hours today, did not even hear a bird, nothing came to the feeders, too cold and windy.....

++1!
When I go down to Florida on vacation it's like a smorgasbord of birds and wildlife compared to up here in the cold north!

378
I need to buy some more compact flash cards and noticed that Sandisk have updated their range?
Is it worth me buying spending more on SanDisk Extreme PRO 160 mb/s or just stick with SanDisk Extreme 120 mb/s CompactFlash?


In addition to the burst rates folks have talked about, if anyone owns the 90Mbps, 120Mbps, and 160Mbps Extreme Pro CF cards from SanDisk and the Lexar USB3 CF/SD reader, I would be very interested in rough comparative download times to transfer data to a computer.  I have the Lexar reader, which I think is almost necessary if you want to put a large SD card in a Canon camera these days; the Lexar reader seems to perform pretty well on modern CF and SD cards, though I can no longer point to exact numbers because Rob Galbraith can no longer afford to maintain his CF/SD/XQD performance database.

Unlike others here, I do not have enough patience to wait for 200+Gb to download directly from the camera card by card, especially if some of the cards are SD cards.  :)

I suspect that the 90Mbps Extreme Pro cards are being phased out, and the current BHPhotoVideo sale on those is a clearance deal.  Just my hunch, but I think it noteworthy that Amazon has not come close to matching the price.


I just started using the lexar 1000x 150 mbs and that same card reader you mentioned....it's much faster than my 90mbs Sdisk cf card when using USB 3.0.   I don't have specific times to quote you but I would guess that compared to USB 2.0 and my 90mbs card, it's roughly triple the speed.   Also, when using my new mbook pro with SSD, it's even faster.

Edit....
I just found this after a google search....it shows transfer speeds using USB 2, 3, FireWire, and thunderbolt.   I didn't know USB 2 maxed out at 35mbs?  No wonder my new MacBook Pro SSD USB 3.0 loads so much faster than my USB 2.0 iMac.

http://www.macworld.com/article/2039427/how-fast-is-usb-3-0-really-.html

379
I am grateful for your post.

Will this card--

Transcend 400X - 64 GB Compact Flash Memory Card TS64GCF400

--the Transcend Blue...does it have sufficient speed for the 5DMk3 when shooting RAW?

I cannot figure out whether this card is UDMA 6 or 7...

the link here--

http://www.bhphotovideo.com/c/product/666610-REG/Transcend_TS64GCF400_Compact_Flash_400x_64GB.html

...is confusing to me.


90mbs read and 60mbs write.....it should work great.  There isn't much practical difference between udma 6 and 7 for most photography.

The only comment I would make is that 64gb is a pretty big card, do you need to take up to 1000 raw images at a time? 

If you do, then personally, I'd rather have two 32gb cards (for about the same price)over one 64gb card.   It's always good to have plenty of back up cards available, and 32 Gb is still quite large.  IMO.

380
Software & Accessories / Continuous burst speed on 5D3 with new Lexar 1000x
« on: February 17, 2014, 07:41:18 PM »
I recently bought two new Lexar 1000x 150 mb/s - 95 mb/s(write) cards.  I had(still have) two SD CF Extreme pro 95 mb/s. (45 mb/s) cards.  I wanted to see if there was much difference between the two when shooting action.

I did a simple high speed FPS test between two CF cards on a 5d3 to see how many shots could be taken before the high speed continuous shooting slowed down....shooting large RAW, one CF card in the camera.

Result...There was no difference between the two cards for 6fps burst shooting... I fired continuously until each started to slow/stutter....it happened at about 30 total shots for each.

I will note that when downloading to the computer, the Lexar was much faster.

Just an observation....hopefully this helps someone with their buying decision when looking to upgrade cards.

381
Lenses / Re: 70-200 2.8 advice
« on: February 17, 2014, 04:03:21 AM »
I've heard the 70-200 2.8 L IS I isn't as sharp as the IS II or non-IS versions. True?

True!

382
Lenses / Re: 70-200 2.8 advice
« on: February 17, 2014, 04:00:39 AM »
I've had a dozen different lenses over the years and the 70-200 2.8ii is my favorite.   It is a phenomenal lens.  It is an asset, not an expense. 

If you don't get the canon 70-200 2.8ii, the thought of owning it will always be lurking in the back of your mind, and if you continue to grow as a photographer you usually tend to eventually want more from your gear or better gear.

That said, if you truly can't afford the lens, then look at the canon 70-200 f4 IS version over the Tammy and sig.

383
Canon EF Zoom Lenses / Re: Canon EF 24-70mm f/2.8L II USM
« on: February 16, 2014, 01:21:33 PM »
I've been using the new 24-70 2.8ii for shooting indoor sports like b-ball and it works great...fantastic AF speed and very sharp images.

iso4000
1/640th
f3.2
1Dx

384
EOS Bodies / Re: sotchi - canon prototypes
« on: February 15, 2014, 06:02:44 PM »
i know it sounds a bit crazy but i watch the games mainly because i want to spot canon prototypes (not much a fan of commercial sport events, especially olympia).

are some other crazys here like me who are more interested in the photographer crowd then the sport events?  ;)

i've done some of this by downloading the images and looking at EXIF, but I might be just wasting my time because i doubt the exif would show the prototype's name/model.

385
Animal Kingdom / Re: Osprey
« on: February 15, 2014, 05:57:47 PM »
Rstrick2, welcome to CR!  Nice shot, other than the sensor dust spots in the sky.

good catch carl!  but still a nice photo

386
Animal Kingdom / Re: Flocking to crazy sunrise
« on: February 15, 2014, 05:56:25 PM »
just a stunning shot petach...as others have said, especially that first one!

387
Animal Kingdom / Re: Our First Robin of 2014
« on: February 15, 2014, 05:55:17 PM »
Its only January, but after clearing snow this morning, I noticed a robin sitting by the front of our house in a crabapple tree eating last years crabapples.
 
I grabbed my 5D MK III and put on my 100-400L and took a photo out my front window.  When he did not fly, I went outside and managed to take a few shots before he flew.  These are not cropped, and have minor  adjustments in exposure.
 
400mm f/6.3 1/250 sec ISO 100
 

 
 
 
400mm f/6.3 1/320 sec ISO 125
 

 
 
We've had a foot of snow over the last two or three days, but the cold arctic air is moving in, clear skies and very cold!
 



great shots!  I just heard on the radio today that roughly 5% of robins don't migrate to the south....this might be one of those.

388
Animal Kingdom / Re: Beaver Shots
« on: February 15, 2014, 05:52:01 PM »
I'm glad to see that these really are beavers.  After seeing the "shots from the rear" post and then the subject of this one, I was worried this forum was going downhill fast ;)

Pray for salvation :)

great shot...he's praying alright! ;D

389
Animal Kingdom / Re: MY dog
« on: February 15, 2014, 05:49:00 PM »
Not quite my dog, however it was living right near our office for a few years... Siberia

great shot rifgat....look at those teeth!

390
Animal Kingdom / Re: BIRD IN FLIGHT ONLY -- share your BIF photos here
« on: February 15, 2014, 05:47:34 PM »
Harris Hawk in flight near Tucson Arizona Feb 8, 2014

wow that is unreal. but is that an antenna on the hawk? is that how you get it to fly straight at the camera, remote control?  ;)
Exactly my thoughts!  ;D

Lovely picture!

+1

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