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iMac 5K (Late 2015): Sheer Viewing Pleasure in the Fastest Mac Available

Get the new iMac 5K at B&H Photo and see the MPG computer gear wishlist.

Lloyd recommends the iMac 5K 4.0 GHz / 8GB / 1TB / M395X model + 64GB OWC memory, a big savings or twice the memory over Apple’s 32GB iMac 5K.

A 5K display is 14.7 megapixels, whereas 4K UltraHD is only 8.2 megapixels. The 27-inch iMac 5K display is also at a much higher density, a plus for viewing pleasure, a minus for seeing slight image faults such as less than perfect sharpness.

See also: iMac 5K for Stunning Black and White Images.

In previous posts I’ve mentioned how impressive it is to view images on the late 2015 iMac 5K. My photographic publications include sizes up to 24 megapixels (6048 pixels wide), but the 4320 size fits the iMac 5K display nearly perfectly in a jaw-dropping hyper reality image.

The contrast and color of the late 2015 iMac 5K are stunning (hyper realistic), so good that I stick with my advice of using a standard-res NEC PA302W when preparing images for prints: reflective media cannot deliver the same effect as transmissive. The iMac 5K color gamut is excellent, but the visual impact goes way beyond gamut.

James K, a NYC pro photographer, writes:

Images on my late 2015 iMac 5k Late are just fabulous. You don’t want to view prints after seeing illuminated photos on the 5K.

I always loved looking at 8x10 chromes on my light box. Hopefully some of the new OLED panels will be priced within reach in a couple of years. I would love a large, thin , high quality electronic view screen for my images.

The iMac 5K display shows the way forward: I am eagerly anticipating 6K and 8K displays. An 8K display would allow the entire image from a Nikon D810 or Sony A7R II to be displayed at once—every pixel. Which will be an incredible viewing experience.

One has to question the appeal of shooting a camera to fill 1/3 of the screen, which will be the case with an 8K display—future displays will make 16 and even 24-megapixel images look positively tiny. While 24-megapixels is a defensible low-end, APS-C cameras like Fujifilm X already do not fill the iMac 5K display horizontally(4896 X 3264 images vs 5120 X 2880 screen). If I’m going to shoot for viewing enjoyment for what will be available in just a few years, a low-res 16MP sensor doesn’t cut it. And 24 megapixels is the bottom-end.

Is the iMac 5K a display, or a computer?

The iMac 5K can be thought of in two ways:

As noted in iMac 5K (Late 2015) with 64GB: the Key to Professional Usage, the late 2015 iMac 5K changes the game by accepting up to 64GB memory, which makes it viable for professional photographers, videographers, etc*. But it’s more than just 64GB memory, as discussed here in two articles. One covers the advantages and limitations of the late 2015 iMac 5K vs 2013 Mac Pro, the other discusses how to build a high performance workstation based on the iMac 5K.

See also:

How I use the iMac 5K

For my work here at, the iMac 5K display (5120 X 2880) is a time-saving (and enjoyable) way to proof images for my photographic publications, which are up to 24 megapixels.

I also use it as a slave workstation with Thunderbolt networking to free up my Mac Pro while it runs 2-10 minute jobs.

Viewing a 4320-pixel image on the iMage 5K display
OWC Thunderbolt 3 Dock
Ideal for any Mac with Thunderbolt 3

Dual Thunderbolt 3 ports
Gigabit Ethernet
5K and 4K display support plus Mini Display Port
Analog sound in/out and Optical sound out

Works on any Mac with Thunderbolt 3
USB-C Travel Dock

Fast charging with up to 100W!

HDMI, SD card reader,
USB-C port, 2 USB Type-A ports
Built-in cable self-stores neatly.
See also OWC 14-port Thunderbolt 3 Dock"

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