Turntable Requirements

[meshmixup]

Hi there,

And how about this?  http://www.amazon.com/Arqspin-ARQ-110-10i-s-12-Photography-Turntable/dp/B00CA7SVK2
I used a turntable with ~0.6 rev/min. It is too hard to keep the pose if it turn too fast. You may consider to add arm rest to make your pose even more stable.

[Hayato]

Hi meshmixup,

Thank you for your additional info.

Good machine!
User review, but worrisome,
It's so low price!

Best regards

[Magnus]

Hello!

This topic brought to mind what I had found when I searched for similar things before so I thought I'd share.

Here is a turntable built with a wheel hub from a car http://cheesycam.com/motorized-lazy-susan-heavy-duty/ and funnily enough in the comments on that post there is this http://www.thingiverse.com/thing:28454

Might help.

Best, Magnus.

[admir]

Hi Magnus,
Our turntable is based/similar on Lazy Susan design.
Just note to Hayato, you would need the way to sync flashes and cameras so delay in shooting is minimal.

There are various solutions explained in forums.

Admir

[Hayato]

Hi,

I am thinking of buying this.
https://arqspin.com/360-spin-hardware/arqspin-24-large-motorized-turntable/

It can not seem to adjust the speed.

What do you think about this?
Is there a problem?


Best regards
Hayato Nishimura

[Hayato]

Hi,

Turntable I'm considering buying is 30 seconds per rotation.
Is this too fast?

Best regards
Hayato Nishimura

[admir]

Our 1st turntable had 26sec per rotation so it shouldnt be problem if you can shoot cameras and flashes that fast.

A

[Exhale]

Yes, I totally agree with admir.
I have custom build turntable . It looks the same with what Hayato is going to buy.. Just there is extra custom programmed micro chip.  I can decrease or increase the speed. It makes the things esier.. My turntable makes 1 revolution per minute.  Even I can adjust it for 1 revolution in 70 or 80 seconds... Very useful for me

[BizzleZ]

Awesome information, everyone!  You guys are a great resource.  So I'm understanding that a turntable is completely fine as long as you mask the background out, correct?

Thanks!

[Hayato]

Hi everyone,

Thank you for your reply.
I decided to buy it.
I will report here the results.

 

Best regards
Hayato Nishimura

[admir]

Awesome information, everyone!  You guys are a great resource.  So I'm understanding that a turntable is completely fine as long as you mask the background out, correct?

Thanks!

Turntable is great for standing still objects and similar, very good for characters (as it depends on person being able to stand/sit still for a fairly long period of time). Yes, masking background does the magic and reduce calculation times. Good light and shooting params (Iso, f-stops...) are the most important to get sharp,well lit photos.

Admir

[MiloMilo]

I'm a little unclear on the workflow for capturing an object shot on a turntable. I have 36 shots of the object as it was rotated, then one shot of the turntable and background without the object for use as a mask. What are the actual steps for using that background shot to mask the images so the object can be recreated?

[admir]

I'm a little unclear on the workflow for capturing an object shot on a turntable. I have 36 shots of the object as it was rotated, then one shot of the turntable and background without the object for use as a mask. What are the actual steps for using that background shot to mask the images so the object can be recreated?

From Tools menu, select Import->Import masks. In first pulldown choose chunk (usually you have one, so select Active). For Method choose Background. Navigate to folder with background in .png.

For more about Masks, check manual in "Using masks" part.

Admir

[MiloMilo]

Great thanks- checked the manual but could not figure it out. Much appreciated.

[EMULAT3D]

I have yet to try using the mask from background feature in Agisoft as I've been creating key's from a green screen background. How are you ensuring that the background exposure is the exact same with and without the subject? Exposure locking? Or does Agisoft have some tolerance when it comes to this?