5D MARK IV SD and CF CARDS

[Harley3348]

Hello, just upgraded to the 5d mark iv and planning a cruise to Alaska. Looking for help on the best SD and CF cards to use for all around indoor/outdoor photography and video. Thank you

[rs-eos]

You omitted the important part of my post that stated I ultimately have four copies of each image.  That does alleviate the issues should a large capacity card fail.

[ebiggs1]

The fact pro level cameras like my 1 Series have two card slots is for the exact reason I stated. The fact you can save to each card is for the same reason. The choice to use smaller CF cards and switch them out is again for the same reason.

Saving raw + jpeg is pointless and wastes space and probably why you like large CF cards. Again lose of a photo or two or even an entire CF card is a simple inconvenience or minor disappointment to you. It is not possible or acceptable to a person like me when your job and reputation is on the line. I have done a career that has worked for me and you are doing what you deem is working for you and that's OK. It is not what I would or will advise new or even advanced people to do.