kevin pan said:
i called my cousin in law. He told me that the 95m/s SD card is relatively new, thats why it is faster than older 45m/s SD card. the speed of SD card is as fast as CF card for the same reason.
the price difference is really due to reliability capture the image and the material of the card itself. the issue about SD card is that its not as reliable as CF card and the design of smaller SD card is more likely to break than CF card.

when you are a professional and rely on your equipments to make money, it is better to use CF cards. if you are taking every day pictures and use a point shot camera, 50 dollars SD is good enough.

if you buy a 3000 dollars nikon d800 , it makes sense to use 100 dollars CF card. if you buy 200 dollars point shot, it also makes sense to use 50 dollars SD card.

regard of which card you put your raw file. CF card is better for Raw since you wont worry about card error as much as SD. you rather put your Jpeg in SD card so that if something happens in SD card, you still will have raw File in CF card.

at last, he says if he has to choose one card between the two, he would get the CF card for nikon D800. look how much the camera worth, he would treat the camera with some nice cards.

i called my cousin in law. He told me that the 95m/s SD card is relatively new, thats why it is faster than older 45m/s SD card. the speed of SD card is as fast as CF card for the same reason.
the price difference is really due to reliability capture the image and the material of the card itself. the issue about SD card is that its not as reliable as CF card and the design of smaller SD card is more likely to break than CF card.

when you are a professional and rely on your equipments to make money, it is better to use CF card. if you are just taking every day pictures and use a point shot camera, SD is good enough.

also, if you buy 3000 dollars d800 , it make sense to use 100 CF card. if you buy 200 dollars point shot, it also make sense to use 50 dollars SD card.

regard of which card you put your raw file, CF card is better for Raw since you wont worry about card error as much as SD. you rather put your Jpeg in SD card so if something happens in SD card, you still will have raw File in CF card.

at last, he says he would get CF card for nikon D800. look how much the camera worth, he would treat the camera with some nice cards.

adamz said:
can someone please check the performance of sandisk extreme pro sd vs sandisk extreme cf or sandisk extreme pro cf?

I guess ill call my cousin in law since he works for Sandisk. i think he is the senior electrical engineer ,and maybe he can give some information.

can someone please check the performance of sandisk extreme pro sd vs sandisk extreme cf or sandisk extreme pro cf?

i have the same question as the last 3 posts.

the 16gb SD card from hb photo is 59.95 with speed 95m/s

http://www.bhphotovideo.com/c/product/824139-REG/SanDisk_SDSDXPA_016G_A75_16_GB_SDHC_Memory.html

The 16gb CF card is 99.95 with speed 90m/s

http://www.bhphotovideo.com/c/product/646873-REG/SanDisk_SDCFXP_016G_A91_16GB_Extreme_Pro_CompactFlash.html

Since SD card is faster, i assume it is better? Why is slower CF card still so expensive? is there any performance between the two that makes the CF card more expensive? WHAT IS GOING ON HERE?

I've just bought the 8GB version of the SD card you're looking at for my son. It was £19 Inc postage from HK on eBay. I also wonder why the now slower CF version is still expensive?

SkintBrit said:
I've never heard that suggestion JY, but it seems to make sense to send the most data to the fastest card.

Thanks SkindBrit, that's what I thought.
Since the 95MB/s SDHC is less than half the price of the CF 90MB/s one I wonder if the CF card price gonna drop soon? Anyway, I know where my money is going.

JY said:
Not trying to hijack the OP's question, but I think it is still relevant to ask here.

I have read quite often that people always says to shoot Raw on the CF card and the rest (jpeg & video) on SDHC. Says now I have a 60mb/s CF card and have a 95mb/s SDHC card, does shooting Raw on CF still make sense? or the above statement was only valid because back in the days CF card was always the faster card?

Thanks & Regards,

I've never heard that suggestion JY, but it seems to make sense to send the most data to the fastest card.

Not trying to hijack the OP's question, but I think it is still relevant to ask here.

I have read quite often that people always says to shoot Raw on the CF card and the rest (jpeg & video) on SDHC. Says now I have a 60mb/s CF card and have a 95mb/s SDHC card, does shooting Raw on CF still make sense? or the above statement was only valid because back in the days CF card was always the faster card?

Thanks & Regards,

Hi guys (& gals), no, I understand the general point of Willis's original question, and the answer is YES you can adjust the size of the jpeg file and send it to the second card slot, without effecting the RAW file being recorded (I do this all the time), and YES Mike, I think you are right, a 12 bit NEF isn't a scaled down 14bit if originally taken as a 12. My problem comes with the statement "a RAW is a RAW", I don't think so, It seems to me as Treckie correctly says above, that just as you can choose the size of the jpeg being recorded, you also have several options when it comes to the RAW file/data, (none of which has anything to do with the OP's question so sorry for bringing it up :-)

Willis, to answer your question; it depends on how you set up your camera to handle the JPG and NEF file formats. As for the other information floating here, read your manuals.
Page 85 of the D3s users manual states that there are 3 types of raw settings available.
uncompressed, lossless compressed and compressed. Mike, you are correct on the bit depth of a file, its selectable either as 12 bit or 14 bit.
Read your manuals while you wait for the gear to arrive.

Happy shooting,

As other noted only the jpeg is effected by the size selected. Only Canon provides options for smaller RAW files (sRAW).

SkintBrit said:
Wouldn't you class a 12bit RAW a scaled down 14bit ?

I guess you could, but I don't think that's what the OP was referring to.

SkintBrit said:
Wouldn't you class a 12bit RAW a scaled down 14bit ?

Hi,

I don't "think" so. I think it begins life as a 12bit RAW file, where a 14bit file begins as a 14bit file.

I willing to be wrong, but it would seem that how the file's life 'starts' makes the difference.

My best,

Mike

cyclekraft said:
adamz is correct. There is no such thing as compressed or scaled down RAW. RAW is RAW.

Wouldn't you class a 12bit RAW a scaled down 14bit ?

cyclekraft said:
adamz is correct. There is no such thing as compressed or scaled down RAW. RAW is RAW. That being said, you have the choice to save your images as just RAW or RAW+jpeg. You can then decide what compression of Jpeg you want, Sm, Med, Lg, (low, medium, high) etc. The D800 will allow you to split the files between cards. So you can chose to send the RAWs to one card and the Jpegs to another. Or you can just shoot jpeg without RAW.

Cool. I've never had the pixels to shoot at anything other than large, so I wasn't sure how that would work.

NSX - ...clearly I should never post before my morning coffee.

It's dual, not duel, unless you expect your memory cards to be like Aaron Burr and Alexander Hamilton. :D

adamz is correct. There is no such thing as compressed or scaled down RAW. RAW is RAW. That being said, you have the choice to save your images as just RAW or RAW+jpeg. You can then decide what compression of Jpeg you want, Sm, Med, Lg, (low, medium, high) etc. The D800 will allow you to split the files between cards. So you can chose to send the RAWs to one card and the Jpegs to another. Or you can just shoot jpeg without RAW.

RAW is RAW, no matter how You will set Your jpg's

If you shoot RAW+JPEG, and your JPEG setting is scaled down to medium, will it save the RAW at full resolution on one card, and the scaled down JPEG on the other, or does the RAW also get scaled down?

I'm thinking this might be the way to go on the D800 as I'll probably only want to bother with the full resolution files for the shots that are keepers.