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Author Topic: Most suitable type of camera for photographing a "Tiny World"  (Read 5296 times)

guyburns

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Most suitable type of camera for photographing a "Tiny World"
« on: January 28, 2025, 05:46:33 am »

A friend died about 3 years ago, and unbeknownst to anyone, Fred had spent 30 years making tiny "Worlds" in the evenings – we discovered the "Worlds" spread about his house and that term for them in his diaries. He made about a thousand. Tiny worlds made out of copper or aluminium, most of them the size of a dice.
 
As part of a 90-minute audio-visual I'm doing about Fred, I want to bring those tiny "Worlds" to life, as if they are a planet rotating slowly in space. The plan is to bring up a dozen or so of these "Worlds" for 10 seconds between each chapter.
 
That's the plan; the implementation is proving difficult. The end result will be a video, but first, I want to find out what type of camera can best do this. Attached is a still from a video I did this afternoon using a metal ring (the actual "Worlds" are of similar size). I was using a GH3 with a x2 close up ring, at the closest distance the 14-140 lens would allow. When finalised, the background will be black, and the string somehow made invisible.
 
Problem - Depth of Field
I had assumed that an expensive camera such as the Nikon D850 with 105mm macro lens would be the way to go. A mate offered his services about a week ago, but the depth of field on a still was very shallow. But it was only a quick test.
 
Another mate with the same camera, heard about this project and said "Forget using a DSLR. You want to try my iPhone 13." We haven't tried it yet, but he did photograph his thumb on the spot, and the depth of field did look impressive – on the phone. I didn't see it on my 27" iMac.
 
Ques
Given that I want to photograph a tiny "World" 10mm across, against a black background, and for it to fill 90% of a 1080P video, what will give the widest DOF – a D850 with a 105mm macro lens, or an iPhone 13? Or some other option?

Note: It may turn out that a shallow DOF gives the most aesthetic results, because of the various parts of the World going in and out of focus as it rotates. But at the moment, I’m looking into a wide DOF.
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mcbroomf

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Re: Most suitable type of camera for photographing a "Tiny World"
« Reply #1 on: January 28, 2025, 06:58:25 am »

Sounds like a fascinating project.

Given all the different options (sensor size, lens focal length and aperture) I would suggest you consult one of the on-line DOF tables and create a spreadsheet covering iphone, 1", m43, APSC and even 135mm sensors.

https://www.cambridgeincolour.com/tutorials/dof-calculator.htm

Good luck
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Chris_Brown

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Re: Most suitable type of camera for photographing a "Tiny World"
« Reply #2 on: January 28, 2025, 10:15:53 am »

A friend died about 3 years ago, and unbeknownst to anyone, Fred had spent 30 years making tiny "Worlds" in the evenings – we discovered the "Worlds" spread about his house and that term for them in his diaries. He made about a thousand. Tiny worlds made out of copper or aluminium, most of them the size of a dice.
 
As part of a 90-minute audio-visual I'm doing about Fred, I want to bring those tiny "Worlds" to life, as if they are a planet rotating slowly in space. The plan is to bring up a dozen or so of these "Worlds" for 10 seconds between each chapter.
 
That's the plan; the implementation is proving difficult. The end result will be a video, but first, I want to find out what type of camera can best do this. Attached is a still from a video I did this afternoon using a metal ring (the actual "Worlds" are of similar size). I was using a GH3 with a x2 close up ring, at the closest distance the 14-140 lens would allow. When finalised, the background will be black, and the string somehow made invisible.
 
Problem - Depth of Field
I had assumed that an expensive camera such as the Nikon D850 with 105mm macro lens would be the way to go. A mate offered his services about a week ago, but the depth of field on a still was very shallow. But it was only a quick test.
 
Another mate with the same camera, heard about this project and said "Forget using a DSLR. You want to try my iPhone 13." We haven't tried it yet, but he did photograph his thumb on the spot, and the depth of field did look impressive – on the phone. I didn't see it on my 27" iMac.
 
Ques
Given that I want to photograph a tiny "World" 10mm across, against a black background, and for it to fill 90% of a 1080P video, what will give the widest DOF – a D850 with a 105mm macro lens, or an iPhone 13? Or some other option?

Note: It may turn out that a shallow DOF gives the most aesthetic results, because of the various parts of the World going in and out of focus as it rotates. But at the moment, I’m looking into a wide DOF.

Fun project!
This is the type of lens you need:

https://www.venuslens.net/product/laowa-24mm-f-14-2x-macro-probe

Here's a rental service:

https://www.lensrentals.com/rent/venus-optics-laowa-24mm-f14-probe-lens-for-nikon-z
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guyburns

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Re: Most suitable type of camera for photographing a "Tiny World"
« Reply #3 on: January 28, 2025, 12:51:47 pm »

Thanks for the suggestions. The DOF calculator was interesting to play around with, but I still need some help.

Test Rig
I have built a test rig (see attachment) and made a few test videos using…

• Lumix GH4
• 14-140 lens set to 140mm (f22)
• +2 close-up filter screwed on.

The results were pretty good for a first test (download here). The DOF was acceptable, but the blurriness in the foreground was unacceptable. As the "World" rotates, it should come into focus at the front. I don't mind a little blurriness at the back. I think the close-up filter was the cause, aggravated by the f22.

Olympus Macro?
So I'm thinking of buying an Olympus 60mm, f2.8 Macro lens – after I get my two mates around and I test their Nikon D850 (with 105mm macro lens) and iPhone 13.


Question
Assume the D850 gives good results, will the Olympus 60mm Macro on my GH4 do a similar job, in terms of size of image and DOF?

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degrub

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Re: Most suitable type of camera for photographing a "Tiny World"
« Reply #4 on: January 28, 2025, 01:35:00 pm »

The 60 macro has a min focal distance of about 7.4 inches if i remember correctly to give a 1:1 magnification. So a 10 mm object will just about fill the frame vertically ( ~13 mm). i think you will find the DOF razor thin. Diffusion starts to take effect above f5.6.

plenty of tip threads out there. Here is one
https://www.mu-43.com/threads/olympus-60mm-f2-8-depth-of-field-tips-for-macro-photography.64719/
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