2 memory card slots camera vs single memory card camera ?

picard · 2nd of February 2011 (Wed)

how does a camera with 2 memory card slots different in performance from single version ?

3Dart · 2nd of February 2011 (Wed)

You can take twice as many pictures

cristphoto · 2nd of February 2011 (Wed)

The 1 series has a CF and an SD slot. You can configure the slots in a couple ways. One you can have the cards shoot identically (RAW on both for example). Or you can have the cards write individually (RAW on one and JPEG on the other). Third you can simply shoot on the first card and when it fills the second card automatically takes over. Also you have the ability to move photos from one card to the other manually.

Islands62 · 2nd of February 2011 (Wed)

I sure wish the 7D had included this feature!

fishhawk · 2nd of February 2011 (Wed)

Does the original canon 5d have two slots? Just curious

Palladium · 2nd of February 2011 (Wed)

Quote:

Originally Posted by fishhawk

Does the original canon 5d have two slots? Just curious

no - just a single CF

JeffreyG · 2nd of February 2011 (Wed)

Quote:

Originally Posted by picard

how does a camera with 2 memory card slots different in performance from single version ?

You can write to both cards at the same time or to each sequentially. This allows:

1) Critical for some people, you can write every shot to both cards at the same time. This forms an instant backup in the case of a card failure. This matters to people who are shooting events that cannot be recreated and that are important.

2) For convenience, you can write a jpeg to one card and a RAW to the other. Allows a RAW 'backup' if you want it.

3) Also convenient, you can write the image to one card until full and then have the camera swap over automatically. This is nice for sports where you can change out the full card at a time that is convenient (like a timeout or halftime) and not get stuck with a full card in the middle of the action.

picard · 2nd of February 2011 (Wed)

ah ok

Mark II · 2nd of February 2011 (Wed)

Quote:

Originally Posted by Islands62

I sure wish the 7D had included this feature!

.... +1!

RPCrowe · 2nd of February 2011 (Wed)

As an old film shooter, I cannot for the life of me understand why photographers should have any problems switching CF cards quickly in the field.

After shooting with cut film, and then 120 12-exposure film and then 220 24-exposure loads and also shooting the Leica 35mm systems with their damnable slow an tedious loading process; the ease of switching CF cards doesn't cause me a moment's anxiety.

Virto · 2nd of February 2011 (Wed)

Quote:

Originally Posted by RPCrowe

As an old film shooter, I cannot for the life of me understand why photographers should have any problems switching CF cards quickly in the field.

After shooting with cut film, and then 120 12-exposure film and then 220 24-exposure loads and also shooting the Leica 35mm systems with their damnable slow an tedious loading process; the ease of switching CF cards doesn't cause me a moment's anxiety.

It probably has a lot to do with what Canon charges to replace the CF module if you bend a pin.

That said, it doesn't seem that hard to me, but still, one less thing to worry about is one less thing.

MT Stringer · 2nd of February 2011 (Wed)

I have a Transcend 8GB SD class 10 card in my MK3 that I use as a spare just in case. I have never tried to write to both at the same time but I am pretty sure the write speed on the SD card is a lot slower than writing to the compact flash card (Transcend 400x 16 or 32gb).

KaiserSose · 3rd of February 2011 (Thu)

I'll tell ya ONE advantage. Some time ago I bought a "broke" Oly E series DSLR and the seller clearly explained to me that the CF card had some bent pins. I bought it anyway, and went out and bought the OTHER type card it takes!!!

tonylong · 3rd of February 2011 (Thu)

I shot using the dual slot setup once with my 1D3 when I decided to try Raw+jpeg for a sporting event (shooting Raw on the CF card, jpeg on the SD card).

It really didn't slow the performance down much, which is the good news. What wasnt fun to me was dealing with 500 Raw shots and 500 jpegs, all together in my Lightroom library. I decided that at least for me I was content with my Raw work, deleted the jpegs, and no more SD cards for me!

I personally do just fine switching CF cards when needed, as long as I don't do something silly like leave spare cards behind (which has happened once or twice).

cdifoto · 4th of February 2011 (Fri)

Quote:

Originally Posted by RPCrowe

As an old film shooter, I cannot for the life of me understand why photographers should have any problems switching CF cards quickly in the field.

After shooting with cut film, and then 120 12-exposure film and then 220 24-exposure loads and also shooting the Leica 35mm systems with their damnable slow an tedious loading process; the ease of switching CF cards doesn't cause me a moment's anxiety.

Good for you?

I'm a klutz. The less I have to mess with, the better. That's my reason for big cards though. The dual slot is for backup, not overflow.

2nd of February 2011 (Wed)	#1
picard Senior Member Join Date: Jan 2006 Location: Canada Posts: 1,960	2 memory card slots camera vs single memory card camera ? how does a camera with 2 memory card slots different in performance from single version ? __________________ Canon 1DM4,7D, Rebel XT 580 EX II, 430 EX II Canon 70-200mm IS II L , Canon 85mm F1.2 L II, Canon macro 100mm F/2.8, 18-55mm kit Sigma 18-200mm F/3.5-5.6, Sigma 10-22mm, Sigma 50mm F/1.4 Sigma 24-70mm F/2.8 EX DG HSM

2nd of February 2011 (Wed)	#2
3Dart Member Join Date: Dec 2003 Posts: 153	Re: 2 memory card slots camera vs single memory card camera ? You can take twice as many pictures

2nd of February 2011 (Wed)	#3
cristphoto Member Join Date: Feb 2010 Location: Maryland Posts: 676	Re: 2 memory card slots camera vs single memory card camera ? The 1 series has a CF and an SD slot. You can configure the slots in a couple ways. One you can have the cards shoot identically (RAW on both for example). Or you can have the cards write individually (RAW on one and JPEG on the other). Third you can simply shoot on the first card and when it fills the second card automatically takes over. Also you have the ability to move photos from one card to the other manually. __________________ 1D MKIII, 1DS MKIII, 1D MKIV, 24L II, 35L, 50L, 85L II, 135L, 300LIS, 17-40L, 24-70L, 70-200LIS, 100-400LIS

2nd of February 2011 (Wed)	#4
Islands62 Member Join Date: Jan 2011 Posts: 48	Re: 2 memory card slots camera vs single memory card camera ? I sure wish the 7D had included this feature! __________________ CLP 7D gripped, Tamron 17-50f/2.8, Canon 28-105f/3.5-4.5 mk1, Canon 50 f/1.4, Canon 70-200L f/4, 430EXII, Litepanel Micropro

2nd of February 2011 (Wed)	#5
fishhawk Member Join Date: Nov 2007 Location: Powell Wy. Posts: 624 IMAGE EDITING OK	Re: 2 memory card slots camera vs single memory card camera ? Does the original canon 5d have two slots? Just curious

2nd of February 2011 (Wed)	#10
RPCrowe Cream of the Crop Join Date: Nov 2005 Location: San Diego County, California, USA Posts: 7,113	Re: 2 memory card slots camera vs single memory card camera ? As an old film shooter, I cannot for the life of me understand why photographers should have any problems switching CF cards quickly in the field. After shooting with cut film, and then 120 12-exposure film and then 220 24-exposure loads and also shooting the Leica 35mm systems with their damnable slow an tedious loading process; the ease of switching CF cards doesn't cause me a moment's anxiety. __________________ See my images at http://rpcrowe.smugmug.com/ EQUIPMENT: Two Canon 7D cameras plus Canon D60 camera modified for full-time IR; Tokina 12-24mm f/4, 50mm f/1.8 Mark-I, 17-55mm f/2.8 IS, Tamron 90mm f/2.8 Macro, 135mm f/2.8 Soft Focus, 70-200mm f/4L IS, 300mm f/4L IS, and 400mm f/5.6L lenses;

2nd of February 2011 (Wed)	#12
MT Stringer Goldmember Join Date: May 2006 Location: Channelview, Tx Posts: 4,598 IMAGE EDITING OK	Re: 2 memory card slots camera vs single memory card camera ? I have a Transcend 8GB SD class 10 card in my MK3 that I use as a spare just in case. I have never tried to write to both at the same time but I am pretty sure the write speed on the SD card is a lot slower than writing to the compact flash card (Transcend 400x 16 or 32gb). __________________ MaxPreps Profile My Gear List

3rd of February 2011 (Thu)	#13
KaiserSose User is banned from forums Join Date: Jan 2011 Posts: 123	Re: 2 memory card slots camera vs single memory card camera ? I'll tell ya ONE advantage. Some time ago I bought a "broke" Oly E series DSLR and the seller clearly explained to me that the CF card had some bent pins. I bought it anyway, and went out and bought the OTHER type card it takes!!!

3rd of February 2011 (Thu)	#14
tonylong ....winded Join Date: Sep 2007 Location: Vancouver, WA USA Posts: 47,196 IMAGE EDITING OK	Re: 2 memory card slots camera vs single memory card camera ? I shot using the dual slot setup once with my 1D3 when I decided to try Raw+jpeg for a sporting event (shooting Raw on the CF card, jpeg on the SD card). It really didn't slow the performance down much, which is the good news. What wasnt fun to me was dealing with 500 Raw shots and 500 jpegs, all together in my Lightroom library. I decided that at least for me I was content with my Raw work, deleted the jpegs, and no more SD cards for me! I personally do just fine switching CF cards when needed, as long as I don't do something silly like leave spare cards behind (which has happened once or twice). __________________ Tony Two Canon cameras (5DC, 30D), three Canon lenses (24-105, 100-400, 100mm macro) Tony Long Photos on PBase Wildlife project pics here, Biking Photog shoots here, "Suburbia" project here! Mount St. Helens, Mount Hood pics here

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