telescope. This is a beautiful "Semi-Apo" f/6 refractor with a 480mm
focal length. The photos were taken with slide film, either Fuji Provia or
Kodak E-200.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: Autoguided with STV
Exposure: 90 Minutes
Date: August 2005
Location: Barcroft Research Station, CA
Elevation: 12,400 Feet
William Optics 0.8x Field Flattener / Focal Reducer
used. Scanned w/Nikon LS4000, slight analog gain
adj. Photoshop levels & color correction.
Same as above, but uncropped. This image shows
the full field of view a 35mm camera gets with the
William Optics Zenith Star 80mm Refractor. It is
very impressive. The problem wit this image is that
the William Optics Field Flattener induce a
significant amount of field curvature. It is cropped
out of the above image, but clearly visible in this
one. WO has agreed to repair my FF. When that is
done I will reshoot and post comparison images.
The M31 image below was taken without the field
flattener. You can see the difference.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: Manually Guided
Exposure: 60 Minutes
Date: July 2005
Location: Shingletown, CA
Scanned w/Nikon LS4000. Photoshop Levels. THis
was taken without the WO Field Flattener / Focal
Reducer. The exposure was only 60 minutes,
compared to 90 above, but you can clearly see that
the field curvature is almos insignificant without the
Field Flattener. I purchased and use the FF in the
other M31 images on this page, but not on this one.
I can't recommend it at this point.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: Manually Guided
Exposure: 60 Minutes
Date: July 2005
Location: Shingletown, CA
Scanned w/Nikon LS4000. Photoshop Levels.
Definitely need more exposure time on this one.
Taken without the field flattener.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: Manually Guided
Exposure: 60 Minutes
Date: July 2005
Location: Shingletown, CA
Scanned w/Nikon LS4000. Photoshop Levels.
Taken without the field flattener.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: STV
Exposure: 10 Minutes
Date: August 2005
Location: Barcroft Research Station, CA
Elevation: 12,400 Feet
Scanned w/Nikon LS4000, slight analog gain adj.
Photoshop levels & color correction. Image
cropped to remove field curvature.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: STV
Exposure: 45 Minutes
Date: August 2005
Location: Barcroft Research Station, CA
Elevation: 12,400 Feet
Scanned w/Nikon LS4000, slight analog gain adj.
Photoshop levels & color correction. Image
cropped to remove field curvature.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: Manual
Exposure: 30 Minutes
Date: August 2005
Location: Barcroft Research Station, CA
Elevation: 12,400 Feet
Scanned w/Nikon LS4000, slight analog gain adj.
Photoshop levels & color correction. Image
cropped to remove field curvature.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: STV
Exposure: 60 Minutes
Date: August 2005
Location: Barcroft Research Station, CA
Elevation: 12,400 Feet
Scanned w/Nikon LS4000, slight analog gain adj.
Photoshop levels & color correction. Image
cropped to remove field curvature.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400
Guiding: STV
Exposure: 60 Minutes
Date: August 2005
Location: Barcroft Research Station, CA
Elevation: 12,400 Feet
Scanned w/Nikon LS4000, slight analog gain adj.
Photoshop levels & color correction. Image
cropped to remove field curvature.
Telescope: ZS80 mounted on LX200GPS 8"
Film: Fuji Provia 400F
Guiding: STV
Exposure: 102 Minutes
Date: August 2005
Location: Barcroft Research Station, CA
Elevation: 12,400 Feet
Scanned w/Nikon LS4000, slight analog gain adj.
Photoshop levels & color correction. Image
cropped to remove field curvature. This image was
not centered very well. As a result the field
curvature is uch more apparent. A longer exposure
would have helped also.
