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UDMA CF card for a900

Printed From: Dyxum.com
Category: Equipment forums
Forum Name: A-mount full frame
Forum Description: For discussion of a900, a850 and a99 cameras
URL: https://www.dyxum.com/dforum/forum_posts.asp?TID=105165
Printed Date: 23 May 2022 at 09:38


Topic: UDMA CF card for a900
Posted By: Wētāpunga
Subject: UDMA CF card for a900
Date Posted: 27 February 2014 at 07:30
Just an idle question - what's the fastest UDMA CF card an a900 can utilise before the extra speed is redundant?


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a7riii, a9- Voigtländer 15/4.5, 110/2.5 M; Zeiss Loxia- 21/2.8, 35/2, 50/2 & 85/2.4, Zeiss Batis- 85/1.8 & 135/2.8; Sony 24-105/4 G; Sigma 70/2.8 M; Tamron 150-500 f5-6.7; Sony SAL 135/2.8 STF



Replies:
Posted By: Pirate
Date Posted: 27 February 2014 at 08:52
Not sure, but I use a Transcend TS32GCF 32GB 400x UDMA7 card in addition to a Sony MSHX8B 8GB card.

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http://www.fluidr.com/photos/kopczewski - Fluidr http://www.airplane-pictures.net/photographer.php?p=4091 - Airplane-Pictures


Posted By: Faldrax
Date Posted: 27 February 2014 at 10:04
I use a Sandisk 16GB Extreme (60MB/S) in my A900


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2 x A900 + VG
CZ 16-35 f/2.8, Sig 24-70 f/2.8 HSM, Tamron 70-200 f/2.8 Di USD, 70-300G, Tamron 150-600,
50 f/1.4, 85 f/1.4 G RS, 100 f/2.8 macro
F56AM, 3600HSD, Youngno 560-II, 055CXPro3+410 geared


Posted By: Wētāpunga
Date Posted: 27 February 2014 at 18:54
Thanks, I've got some older generation UDMA CF cards. I'm wondering if the 600x to 1000x cards will be useful or whether the extra speed will be wasted. Currently use Lexar and Sandisk cards that were zippy on my a700


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a7riii, a9- Voigtländer 15/4.5, 110/2.5 M; Zeiss Loxia- 21/2.8, 35/2, 50/2 & 85/2.4, Zeiss Batis- 85/1.8 & 135/2.8; Sony 24-105/4 G; Sigma 70/2.8 M; Tamron 150-500 f5-6.7; Sony SAL 135/2.8 STF


Posted By: Faldrax
Date Posted: 27 February 2014 at 23:44
Where you will notice the extra speed is in transferring images to your computer, assuming you use a high speed external reader.

I switched to a USB 3 CF reader soon after getting the A900, and noticed a big improvement in transfer times.

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2 x A900 + VG
CZ 16-35 f/2.8, Sig 24-70 f/2.8 HSM, Tamron 70-200 f/2.8 Di USD, 70-300G, Tamron 150-600,
50 f/1.4, 85 f/1.4 G RS, 100 f/2.8 macro
F56AM, 3600HSD, Youngno 560-II, 055CXPro3+410 geared


Posted By: Mark_k
Date Posted: 03 March 2014 at 02:13
Originally posted by Pirate Pirate wrote:

Not sure, but I use a Transcend TS32GCF 32GB 400x UDMA7 card in addition to a Sony MSHX8B 8GB card.

Trascend UDMA7 400x 64Gb..
I have four of Transcend 400x cards and the 64Gb version UDMA7 clocks at 60Mb writing speed
32Gb version clocks at only 40Mb/s and the older UDMA version is much slower


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Mark K A99II A7rII, A77, A6k, RX100III


Posted By: Mark_k
Date Posted: 09 March 2014 at 14:46
http://www.tomshardware.com/charts/compactflash-charts/-8-Random-Write-4-KB-QD-32-MB-s,3495.html - Latest CF card writing speed from TH

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Mark K A99II A7rII, A77, A6k, RX100III


Posted By: tqlla
Date Posted: 25 March 2014 at 22:32
I have the Monster UDMA 800x 64GB card in my A850. It is sluggish compared to my old Sandisk Extreme 16GB card.

I wish I could figure it out. My Kingston card was also pretty sluggish.   I guess the moral of the story is stick with Sandisk.

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Sony A850 | Sony A65


Posted By: addy landzaat
Date Posted: 25 March 2014 at 23:24
Kingston had reliability problems with Sony cameras. I'll avoid them. Never heard of Monster memory cards, so, your experience tells me nothing. Had some good and some bad experience with Transcend cards. However, I really like my Lexar cards, They're quite good. However, I'm using some older Lexar Professional 300x UDMA cards in my A900 and it is plenty fast (but then again I don't push the camera in this respect).

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Why not follow me on Instagram? @Addy_101


Posted By: Pirate
Date Posted: 25 March 2014 at 23:54
Originally posted by wetapunga wetapunga wrote:

Thanks, I've got some older generation UDMA CF cards. I'm wondering if the 600x to 1000x cards will be useful or whether the extra speed will be wasted. Currently use Lexar and Sandisk cards that were zippy on my a700

They won't be wasted per-se especially if you're going to do a lot of sequential image shooting say for fast moving subjects, otherwise a 400x or similar will be fine. My 400x UDMA Transcend takes around 10-12 seconds in CAF sequential mode before the buffer fills, which is around 12-15 images at full size cRAW format, so not too shabby.

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http://www.fluidr.com/photos/kopczewski - Fluidr http://www.airplane-pictures.net/photographer.php?p=4091 - Airplane-Pictures


Posted By: Bob J
Date Posted: 26 March 2014 at 00:44
Problems with Kingston cards were with the 'Elite' series - the 'Ultimates' were always some of the fastest cards in the a700 for me...

The a700 seemed to top out with a 266x card, but I've seem measurements from an a850 which gave very fast results from a Sandisk 400x (60MB/s) card - so the a850 could certainly benefit from a higher version of UMDA.

some of the results on speeds with the a850 are shown in http://www.dyxum.com/dforum/card-speeds-alpha-mount-bodies-updated-for-a99_topic70631.html - this post .

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RBJ ~ http://tinyurl.com/h7uhozk - Moderation on Dyxum


Posted By: Nivek
Date Posted: 13 April 2014 at 17:23
I use both Lexar and Sandisk and have never had a problem. I used 300x with my A700 fine


Posted By: Bob J
Date Posted: 13 April 2014 at 18:00
300x will work, but may be slower than a 266x card in the a700...

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RBJ ~ http://tinyurl.com/h7uhozk - Moderation on Dyxum


Posted By: swan
Date Posted: 08 May 2014 at 18:44
Have some Sandisk Ultra IIs at 30mbps, and an Extreme Pro UDMA7 at 160mbps.

In a prolonged burst, the Extreme Pro gives me an extra frame or two, and is slightly quicker in clearing the buffer between bursts. Never really felt that it made a massive difference though



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