[RonHendriks1966]

The Integral UltimaPro SDHC (Class 10) I've just bought was £17.28 for 16Gb.

Vic.

maybe you can do the test to see if you really get those 23MB write or that is just not possible.

[Smeggypants]

The Integral UltimaPro SDHC (Class 10) I've just bought was £17.28 for 16Gb.

Vic.

Mine were £18.xx each.

[Arbalist]

Hi, sorry for the delay but it's taken me a few hours to find my stop watch...

I wanted to be as scientific as possible but with changing light outside it's not too accurate but may give some indication. I may try again indoors with artificial light if I get time.

Here are the stats

K5 with 18-55 kit lens set to 24. RAW DNG Manual focus 100 @5.6 - ISO varied 320-800

I set the camera to continuos (Lo) and took ten shots with the camera mounted on a tripod. The camera was pointed out into the garden with some inside detail as well. I timed from first press of shutter until busy light went out.

Sandisk Extreme III 30MB/s Edition 4Gb average over 3 attempts was 15.7 secs

Integral Ultima Pro 23GB/s 16Gb 24 secs

TDK Class 6 4Gb (£9.99 from Tesco) 34.5 secs

As the light changed slightly I ran another quick test of the two slowest cards to be fair and the best time (1 attempt) was:

Integral 20.84

TDK 30.00

When I checked file sizes the integral and TDK were around 21Mb and the Sandisk 23Mb!

I should add that all cards were formatted before each attempt and the battery was fully charged before starting the series of tests.

Vic.

PS Sandisk was £18.50

[RonHendriks1966]

Just did a test, that should bring it all up. Tested it with Jpg and RAW.

Basic test:
2) No cap, 1/250, iso5000, RAW only to make big files. Again 15 and 60 seconds.

RAW:
- At iso 5000 files are uge, almost 30 Mb for a single file with no (hood) cap on. In 15 sec. the camera took 31 RAW that where 920 Mb and after 52 seconds the red light was out, giving a filewrite off 17,7 MB/s including all processing. In 60 seconds the K-5 took 58 RAW giving 1,736 Gb of filesspace to fill. The difference of 27 files giving 816 MB to write in 45 seconds -> 18,1 Mb/s

I wanted to be as scientific as possible but with changing light outside it's not too accurate but may give some indication. I may try again indoors with artificial light if I get time.

Here are the stats

K5 with 18-55 kit lens set to 24. Manual focus 100 @5.6 - ISO varied 320-800

I set the camera to continuos (Lo) and took ten shots with the camera mounted on a tripod. The camera was pointed out into the garden with some inside detail as well. I timed from first press of shutter until busy light went out.

Sandisk Extreme III 30MB/s Edition 4Gb average over 3 attempts was 15.7 secs

Integral Ultima Pro 23GB/s 16Gb 24 secs

TDK Class 6 4Gb (£9.99 from Tesco) 34.5 secs

When I checked file sizes the integral and TDK were around 21Mb and the Sandisk 23Mb!

Well nice to read, but not so scientific as you would like, because to many variations in it. You never filled up the buffer, so parts of your messurement is procestime. When I look at your fast card, 10 files at 23 MB gone in 15,7 sec, that means some 15 seconds of writetime is just a little more then 15 MB/s.

[Arbalist]

Not very scientific as I say but easily repeatable and perhaps more realistic of the way in which I use the camera. It's also given me clear indication that if I need the speed for any given situation I need to use the Sandisk Extreme III 30MB/s Edition! I may check out the Integral Endurance Class 10 30MB/s if I need some more storage.

Endurance SDHC Class 10 Memory Card | Integral Memory

Integral Endurance 8GB SDHC Memory Card - Class 10 £17.87 - Free Delivery

Anyone done any tests on Lexar cards?

Vic.