I couldn't believe the difference in the printout on my Canon PixmaPro-100 printer after I deselected the wireless printer option. I have two printers in my printer selection drop down on my computers, a normal USB printer selection (used specifically for my Mac mini) and a Wireless printer selection for all other computers in the house.
I was printing out a Thank You card that I created using one of my photos and I just couldn't get rid of the subtle, but obvious. color banding. I tried different paper, different settings (e.g. 16 bit vs 8 bit) no change, banding still there. As you know, I'm now going through a lot of ink and paper with this trial and error process. And, I'm getting frustrated knowing that this printer can do a lot better than what I'm getting.
I noticed when I was printing that the wireless light on the printer was flashing yet the printer is connected to my Mac mini through a USB cable.
The light turned on!
I went into the printer selection setting in the menu that comes up when printing in photoshop and I saw that I had two selections with the same name.
Next, I went into the main preference settings for printers on the Mac mini and I saw the two selections with the same name but one indicated that it was wireless (air print). I immediately changed the name on the wireless selection to something that would tell me that it was for wireless printing.
I went back into my PS print job and noticed that I had the wireless function selected so I deselected it and then hit print.
WOW! What a difference. Before the change, the printout took about 40 seconds, which I was surprised considering I had high quality set for the printout. After the change, the printout took considerably longer almost 2 minutes but the quality was so much different, better, and the banding was completely gone.
Now the BIG question is, what will happen if I take that file and print it out using my Windows laptop and PS that uses the wireless printer selection....to be continued.
Any thoughts?
Rich

There are countless use cases for any combination of dual card slot storage.

If you treat your cards right —

> Format only in the camera where they will be used

> Protect from moisture, dust, static, and magnetic fields in a waterproof, static resistant case

> Turn off the camera before removing or inserting cards

> Buy high quality cards from reputable manufacturers

> Use cards on the camera manufacturer's approved list (especially for high bit rate video recording)

— then independent card slot assignments have low risk of failure.

OTOH, if you treat your cards like your car keys (i.e.; keep cards in pockets with keys and chains, spill drinks on them, format them in devices other than the exact camera that will use them, use the cheapest cards you can find, use cards too slow for the files you're making, hold them to the side of a steel file cabinet with a stud finder, touch them in dry weather after sliding across a car seat in wool pants...), you're in for a Very Bad Day.

And the answer is . . . it depends on what you are doing!

In my case, as a real estate photographer some of my clients want RAW images delivered and others want JPEG. In either case there is no editing involved on my part. So, shooting with my Nikon D750 that has two SD card slots, I assign one to RAW and the other to JPEG. When I get home I transfer both to my computer and then upload whichever format the particular client for that day wants to their site.

That keeps it simple with the same shooting configuration for all of my clients. This approach has served me well over the past 4 years with over 1,300 paid shoots.

BT