Starizona SCT Corrector LF - Large Format Reducer/Coma Corrector

£549.00✓ 2 year warranty

Product description
FAQ

:	Out of stock due 15-20 working days

Notify me when back in stock

Ask a Question Ask a Wishlist

Add To Wishlist

Send To Friend

About this product

Model: starizona_sctcorr_lf
Part Number: SCTCORR-LF

This large-format version of the popular Starizona SCT Reducer/Corrector is designed to cover full-frame (35mm format) sensors.

The SCT Corrector LF is designed for Celestron 11" and 14" standard SCTs. Designed to thread directly onto the large 3.29" threads on the rear cell of C11 and C14 telescopes, the larger optical elements of the SCT Corrector LF minimise the vignetting over large sensors. Remaining vignetting over a large field is minimal and limited only by the telescope baffles, which are designed for a slower focal ratio; but this vignetting is easily removed by using flat field images. Sharpness is excellent over a 42mm diagonal, with spots sizes up to 9x smaller than the native telescope! The focal ratio is reduced to f/7.2 on the C14 and f/7 on the C11, for a speed increase of 2.1x and 1.9x, respectively.

The SCT Corrector LF is designed to increase the available backfocus compared to Starizona's standard SCT Corrector. Backfocus is 146,mm accommodating a variety of accessories.

The rear threads on the SCT Corrector LF are the same 3.29" threads as on the rear cell of the C11 and C14 telescopes, so standard accessories are easily attached.

Above: Spots sizes compared for a native C14 at f/11 versus a C14 at f/7.5 with the SCT Corrector LF. Each small square in the diagram is 40 microns. The RMS spot size at the edge of the field for the native C14 is 106 microns and the SCT Corrector LF is just 13 microns!

C11 Specifications