Digiscoping test with the Ricoh GXR

Date of test
07/03/2010
Conditions
Early morning sun, no wind
Subject
Life size ceramic Bullfinch model
Camera
Ricoh GXR with S10 24-72mm lens module
Spotting scope
Olivon T84-EDO
Adapter
Olivon UDCA digiscope adapter
Additional info
Tripod mounted with electronic shutter cable

The purpose of this test is to see how the Ricoh GXR performs at digiscoping using as much control in the test as possible. I used a ceramic model life sized bird as the subject. Using a static subject, rather than an actual bird, eliminates the risk of a blurred image resulting from the movement of the subject, giving a more accurate result from the equipment itself.

I set up the subject at a distance of 10m and also a distance of 6m. The scope was tripod mounted and an electronic cable release was used to reduce the risk of camera shake.

For this test I used the Ricoh GXR camera body and the Ricoh S10 24-72mm lens unit as this module is currently the most suitable for digiscoping.
The subject was located through the scope using the LCD screen of the camera and I also focused the scope using the camera's LCD screen.

Results

Each image below has two different versions - version one is the original image straight from the camera at 100% size with no software manipulation. Version two is the original image reduced in sized to 2000x1500 pixels and a Smart Sharpen filter applied in Photoshop - this is to give you an idea of what can be achieved with some basic improvements after the image has been taken.

10m

8m

 

test

The following settings were used for the test:

Spotting scope set at 20x optical zoom
Ricoh GXR set to approx 2.5x optical zoom

Camera settings:

  • Aperture priority mode
  • Spot AF
  • Spot metering
  • ISO 100
  • Quality - Jpeg (Fine) 3648x2736