TEST REPORT
OLYMPUS C-5050Z Astropics with
Digital Camera
Olympus C-5050Z---

  I have started to use a new 5 mega pixels compact digital camera of C-5050Z in Dec 2002. This is a substitution for C-2020Z used as main equipment to capture Moon & Planets with telescopes up to this time. This camera has almost same specs with C-2020Z excepting CCD chip, but can output CCD-RAW format in addition to JPEG and TIF files, and has a noise-reduction process in case of long exposure.
  In this page I'd like to show you several trial astrophotographs taken with this camera.


  All images in this section have been taken with 2560 x 1920 full-size format and shrunk to 1024 x 768 pixels.
And used a mode of high-quality JPEG format unless each description contains no annotation.
(Each image has a size of 30 to 90KB)

A snap of trial photography / Camera body is mounted to telescope (Meade 10" LX200) with BORG's adaptor. Checking a taken image with LCD monitor
1. Example image of night sky

Rising Big Dipper A part of Big Dipper rising from trees under Moon light. Taken at Ooizumi vil., Yamanashi pref.
Dec 13 2002, 23:03 JST, 16sec. exp.,
f=7.1mm F1.8
CCD sensitivity: ISO400
2. Example images of Moon

Moon age 9.3 This image show you a whole of Moon with an age of 9.3 captured by connecting to a telescope with a camera adaptor of BORG, one of Japanese telescope venders. The lunar photography with digital camera is very easy because I can use AF function. Furthermore I can change AF area in field of view, can focus precisely by using of lunar terminator without moving telescope. This image has been provided by saving CCD-RAW format. Taken at Ooizumi vil., Yamanashi pref.
Jan 12 2003, 19:58 JST, 1/250sec. exp., f=7.1mm F1.8
Meade 25cm(10") Schmidt Cassegrain with conversion lens, afocal method with LV25mm eyepiece
Synthesized focal length:454mm(equivalent 2224mm in 35mm film format)
CCD sensitivity: ISO64
Unsharp masking processed with Photoshop5.5
Around Copernicus crater This image has been captured around Copernicus crater by setting a lens in tele-side. Trimmed about 80% in center of original image. Taken at Ooizumi vil., Yamanashi pref.
Jan 12 2003, 19:09 JST, 1/40sec. exp., f=14.5mm F2.3
Meade 25cm(10") Schmidt Cassegrain with conversion lens, afocal method with LV25mm eyepiece
Synthesized focal length:928mm(equivalent 4547mm in 35mm film format)
CCD sensitivity: ISO100
Unsharp masking processed with Photoshop5.5
3. Example images of Planets

The Venus A venus image captured in midday. Taken at Ooizumi vil., Yamanashi pref.
Dec 15 2002, 10:40 to 10:43 JST, 1/800sec. exp., f=66mm F2.6
Meade 25cm(10") Schmidt Cassegrain, afocal method with NAGLER Type5 16mm eyepiece
Synthesized focal length:10300mm (equivalent 50470mm in 35mm film format)
CCD sensitivity: ISO64
Composed 7 shots, unsharp masking processed & tone level adjusted with Photoshop 5.5
The Jupiter A Jupiter image by composing seven shots with 1/15sec exposure time. Taken at Ooizumi vil., Yamanashi pref.
Jan 12 2003, 25:05 to 25:13 JST, 1/15sec. exp., f=43mm F2.6
Meade 25cm(10") Schmidt Cassegrain, afocal method with LV12mm eyepiece
Synthesized focal length:8944mm (equivalent 43825mm in 35mm film format)
CCD sensitivity: ISO200
Composed 7 shots, unsharp masking processed & tone level adjusted with Photoshop 5.5
The Saturn A Saturn image taken with same method of Jupiter in upper part. Taken at Ooizumi vil., Yamanashi pref.
Jan 12 2003, 22:12 to 22:14 JST, 1/10sec. exp., f=74.5mm F2.6
Meade 25cm(10") Schmidt Cassegrain, afocal method with LV12mm eyepiece
Synthesized focal length:15496mm (equivalent 75930mm in 35mm film format)
CCD sensitivity: ISO400
Composed 7 shots, unsharp masking processed & tone level adjusted with Photoshop 5.5
4. Example image of Constellation

The Orion This image is a star-field around the constellation of Orion with a lens of wide-angled side. This camera has a very fast lens of F1.8. You can detect fine stars about 10th magnitude. I have used a noise-reduction process to shoot this image. Taken at Ooizumi vil., Yamanashi pref.
Dec 13 2002, 23:24 to 23:26 JST, 16sec. exp.,
f=7.1mm F1.8
CCD sensitivity: ISO400
Composed 3 shots, 2x2 binned & tone level adjusted with Stellaimage 3
5. Example images of Nebulae & Clusters

M42 This picture shows you the Orion Nebula M42 taken with afocal method method. This camera has low sensitivity in reddish nebulae, bluish color is conspicuous. Taken at Ooizumi vil., Yamanashi pref.
Dec 13 2002, 22:22 to 22:39 JST, 16sec. exp., f=7.1mm F1.8
TAKAHASHI 12.5cm(4.9") fluorite refractor, afocal method with LV25mm eyepiece
Synthesized focal length:284mm (equivalent 1390mm in 35mm film format)
CCD sensitivity: ISO400
Composed 18 shots, 2x2 binned, tone level adjusted & star-sharpen filtering processed with Stellaimage 3
M46 This image captured an open cluster of M46 in Puppis. You can see a planetary nebula of NGC2438 in center of cluster with a greenish color. Taken at Ooizumi vil., Yamanashi pref.
Dec 13 2002, 26:29 to 26:34 JST, 16sec. exp., f=7.1mm F1.8
TAKAHASHI 12.5cm(4.9") fluorite refractor, afocal method with LV25mm eyepiece
Synthesized focal length:284mm (equivalent 1390mm in 35mm film format)
CCD sensitivity: ISO400
Composed 18 shots, 2x2 binned, tone level adjusted & star-sharpen filtering processed with Stellaimage 3


Copyright(c) 2003 by Naoyuki Kurita, All rights reserved.
To top page