Astro-Physics 0.75X Photographic-Visual Telecompressor

Special Price €369.00 Regular Price €408.00
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SKU:
AP-27TVPH

Astro-Physics 0.75X Photographic-Visual Telecompressor (focal reducer). It reduces the native focal length of the system on which it is used by 0.75 times. For instance , a F/6 refractor will be transformed in to a faster F/4.5 optical system.

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Astro-Physics 0.75X Photographic-Visual Telecompressor (focal reducer). It reduces the native focal length of the system on which it is used by 0.75 times. For instance , a F/6 refractor will be transformed in to a faster F/4.5 optical system. If you photograph at prime focus with a 35 mm camera on a 130mm f/6 refactor, you will achieve a 1.7 x 2.4 degree field. If you use this telecompressor, the field size increases to 2.3 x 3.3 degrees at f/4.5. This greatly increases the versatility of your refractor for imaging a wide variety of objects.

This well-corrected accessory lens preserves the high contrast and superb color correction of the main objective. While the telecompressor flattens the field to a certain degree, you may still notice some slightly elongated stars in the corners. This is less of an issue with CCD imaging when the chip size is smaller than a 35 mm negative.

For further info about this reducer we suggest to take a look at the data sheet you can find in the download tab.


More Information
Product Status New
Package width 15 cm
Package height 10 cm
Package depth 10 cm
No. of parcels 1
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