Agisoft Metashape

Agisoft Metashape => Face and Body Scanning => Topic started by: davidw on October 05, 2018, 02:44:28 PM

Title: Best Camera Choices for a rig - budget cameras?
Post by: davidw on October 05, 2018, 02:44:28 PM
Hi,

I'm currently considering a rig similar to ones i've seen for up to 8 cameras. I realise that DSLR or mirror framed cameras are the best choice but i'm on a budget for the whole rig and wanted some options.

The DSLR's i've looked at so far is the Nikon D1100 and the new NIkon D3400.

Does anyone have some suggestions?

Thx
Title: Re: Best Camera Choices for a rig - budget cameras?
Post by: ikercito on November 08, 2018, 12:42:26 AM
I guess you mean Canon 1100D and Nikon D3400...? In that case Nikon has a great advantage in megapixels (24mp vs 12mp).  My belief is that any camera above 12 or 14mp can do a very fine job (the more, the better, obviously). Most people here will suggest buying better prime lenses for the task, but being on a tight budget I think you can manage to get good results with the kit lens. Other factors you should consider before you invest in one system or the other are, having your cameras AC powered instead of using batteries, being able to shoot in sync and download images remotely, and light... The more light equals less noise, so better results. 8 cameras can get you pretty far in head scanning, but forget about doing full body scanning for now.  Good luck!
Title: Re: Best Camera Choices for a rig - budget cameras?
Post by: ftc on February 02, 2019, 01:20:08 PM
We offer economical solutions for camera rig. Do mail us at reeflection@outlook.com
Title: Re: Best Camera Choices for a rig - budget cameras?
Post by: pbourke on March 06, 2019, 01:21:01 PM
I'm going to be using one of these
    Canon eos-m6 mirrorless, 24MPixels, APS-C
    Canon eos-m50, mirrorless, 24MPixels, APS-C

Probably with the CANON EF-M 22MM F/2 STM LENS.

Test with a single camera here with a mannequin
    https://skfb.ly/6HLSW
Title: Re: Best Camera Choices for a rig - budget cameras?
Post by: pbourke on August 29, 2019, 10:44:22 AM
I recently did this
     http://paulbourke.net/reconstruction/humanscan2/
Used Canon EOS 1500D, 24MPIxels, working great.
Title: Re: Best Camera Choices for a rig - budget cameras?
Post by: badger on September 10, 2019, 06:56:57 PM
I recently did this
     http://paulbourke.net/reconstruction/humanscan2/
Used Canon EOS 1500D, 24MPIxels, working great.

very a good result with respect to textures. However the shape still comes out more crisp, when done with 96 Raspberries.

Certainly the advantage of not needing projection and double shooting is immense, but you might want to grow a little more the number of points of view in order to capture finer details.
Title: Re: Best Camera Choices for a rig - budget cameras?
Post by: mcstieg on August 27, 2020, 03:27:29 PM
What type of cameras do you use with raspberries?
I've only found cameras with a few megapixels, but I didn't mess around a lot with rasp until now...
 
Thank you!  :)
Title: Re: Best Camera Choices for a rig - budget cameras?
Post by: badger on September 16, 2020, 01:43:26 PM
What type of cameras do you use with raspberries?
I've only found cameras with a few megapixels, but I didn't mess around a lot with rasp until now...
 
Thank you!  :)

I use the standard raspberry camera module, which is 8 megapixels. Actually 2 thirds of my cameras are still equipped with the older 5 megapixel module.

The models come out quite acceptable for low resolution applications (printing, AR) but not for high res applications.

I'm adding DSLRs to the rig and now have the front of the persons shot by 8 DSLRs, growing to 16 soon. The detail is of course far better, as the cost of the rig.

By experience I can tell that the megapixels do not count that much. I did not notice any improvement from movig to 5 MP to 8 MP. A friend of mine uses 40 old DSLRs, just 11  megapixels each, to shoot only the head and he get stunning models.

The difference to quality is not given by the individual sensor megapixel but by the lens (the raspberry's sucks) and by the number of sensors.
Title: Re: Best Camera Choices for a rig - budget cameras?
Post by: mcstieg on September 16, 2020, 04:25:09 PM
Thank you very much!