IQ180 and Compact Flash Cards

Questions, comments and suggestions regarding Phase One IQ4, IQ3, IQ2 and IQ1 series digital camera backs.

IQ180 and Compact Flash Cards

Postby NN109526UL2 » Fri May 30, 2014 5:29 pm

I use SanDisk Compact Flash Cards exclusively. Currently, they rate their 64GB Extreme UDMA CFC's at 60Mb/s. Their Extreme Pro UDMA 6 cards are rated at 90Mb/s. Their 64GB Extreme Pro UDMA 7 cards are rated at 160Mb/s. The 128GB Extreme Pro UDMA 7 cards are rated at both 100 and 160Mb/s. What is the recommended storage capacity and Mb/s read/write speed for the IQ180 Back? What does UDMA stand for and how do the UDMA, UDMA 6 and UDMA 7 differ, relative to the IQ180?
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Re: IQ180 and Compact Flash Cards

Postby NN109526UL2 » Fri May 30, 2014 5:51 pm

UDMA 7, which stands for Ultra Direct Mode Access 7, is the latest transfer mode under the UDMA interface. UDMA 7 allows a maximum transfer rate of up to 167MB/sec. This can be compared to the previous UDMA mode, UDMA 6, which allowed transfer rates of up to 133MB/sec.
OK. That answers that question. What is the recommended MB/s speed and storage capacity for the IQ180?
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Re: IQ180 and Compact Flash Cards

Postby Jon » Fri May 30, 2014 5:56 pm

IQ180 can do bursts of 117mb/s. My recommendation is the 90mb/s cards at whatever capacity suits you best. At that speed you shouldn't have to deal with any buffering while shooting high speed on the back. Personally I don't like to go over 16 or 32GB so as not to put all my eggs in one basket.
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Re: IQ180 and Compact Flash Cards

Postby NN109526UL2 » Fri May 30, 2014 11:49 pm

Thanks, Jon. The new SanDisk CFC's are rated at 120 MB/s. If the 180 can do bursts of 117 MB/s, can I assume that the 120 MB/s cards will be fine? That just indicates how fast it will take data from my system, at a max of 120 MB/s As I shoot, loading the buffer with data, the buffer will simultaneously transfer that data into the CFC, at the max rate of 120 MB/s. If the buffer holds 500 MB worth of data, it will take about 5 seconds to move it into the CFC. I have not updated my Mamiya 645DF+ or IQ180 firmware since I received the system. How do I read the current 645DF+ firmware and the IQ180 firmware? Will an Extreme Pro, 64GB, 120MB/s card work in any firmware edition?
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Re: IQ180 and Compact Flash Cards

Postby Philip B » Sun Aug 10, 2014 6:21 pm

Dear Jon

Based on your recommendation, I ordered a 90 mb/s card but what they sent was a 160 mb/s card. Please can you tell me whether this will be alright for my 1Q160?

Philip
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Re: IQ180 and Compact Flash Cards

Postby Jon » Mon Aug 11, 2014 6:53 pm

I suspect it should be fine. Have you tried it out yet?
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Re: IQ180 and Compact Flash Cards

Postby Philip B » Tue Aug 12, 2014 6:22 pm

Dear Jon

Thank you for the helpful response. I haven't tried it yet because if it is not suitable I want to return it. So it is still unopened.
I see that I mistyped my message: I should have said IQ260 not IQ160. Does your advice still apply? If so, I will open it and let you know whether it works.

Thank you again.

Philip
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Re: IQ180 and Compact Flash Cards

Postby kendoophoto » Tue Sep 16, 2014 6:49 pm

I am now using Sandisk's new Extreme Pro 32GB CF cards, UDMA 7, rated 160MB/s.

Phase IQ180 and Phase DF. Not a single hiccup. Seems faster and smoother than the Extreme Pro 90 MB/s CF cards that I have.

:) Ken
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