Photography

Jurry
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Macro versus compression

Hi

As some of you might be aware of, I’m on a self-tutoring experiment with photography.

One of the subjects I’m trying to master is macro photography. I thought that would be the proverbial “cup of tea”.

I’ve got a pretty good camera Nikon D7500, pretty nice Nikon 40 mm prime macro lens, sturdy stable tripod so what could possibly go wrong?

Aim shoot done.

Well today I discovered that one camera feature I thought was brilliant, turned out to be less brilliant as I hoped.

Here it is in summary: the camera uploads every picture automatically to my photos on the iPhone or iMac either by WiFi or Bluetooth.
So the photo went from camera to iPhone, there it’s uploaded automatically in iCloud, download on big iMac and toy around with post production.

What I discovered today (some f not all might laugh about it) is that if I take the memory card out of the camera and plug it directly into the iMac the same photos or transferred yet there not quite the same.
Because with the Bluetooth WiFi Route, the image is compressed

Full size picture is approx 8 mb compressed 700Kb

On a phone hard to tell the difference. When trying to improve on a 27 inch high resolution iMac screen, the differences are shocking.

I’ve put both photos below but since the upload to the forum will probably compress them, I’m afraid you can’t really see big difference. But zoom in and you’ll see little scratches visible on one not on the other.

It’s a nightmare keeping them apart on my photo library so I’ve split that in: camera upload and card upload and in due time I’ll figure out what to do next.

Go ahead have your laugh (I could t resist laughing about it myself as well) but it’s one of those “discoveries” on the road to improvement.

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