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  • Deluxe 1x field flattener for triplet refractors Deluxe 1x field flattener for triplet refractors

Deluxe 1x field flattener for triplet refractors

Product code: PLLFLAT1XDX

Quick Overview

The field curvature is a normal effect that occurs in refractors and generates an image deformation (the stars are stretched) to the edges of the image itself. This effect is more visible when the focal ratio of the instrument is very short (for example f/5) and when large sensors are used (such as those of the DSLRs).


Our Deluxe 1x field flattener for triplet refractors is specially designed for apochromatic refractors Series T (with triplet lenses) : inserted into the focuser in front of the camera, it flatten the field up to Full Frame sensors (24x36mm) and doesn't reduces the telescope focal length. You can choose to order, on the camera side, the field flattener with a T2 thread (M42x0,75) or a M48 thread (M48x0,75 male) for connection to the CCD or DSLR cameras. This field flattener, to have better performances, requires to place the camera's sensor at 55mm from the rear of the flattener.

Availability: Out of stock

€350.00
VAT 22% incl.

Details

When you want to take pictures to wide field objects, we suggest to use cameras (such as cooled CCD or DSLR cameras) with large sensors. For example, to record extended objects like the Andromeda Galaxy (M31) with refractors with not too high focal length, we recommend a sensor with at least 20mm diagonal. 

However, using these sensors, you must pay attention to field curvature, an optical effect that leads to the image distortion towards the edges of the field. The Deluxe 1x field flattener for triplet refractors, connected in the focuser before the camera, perfectly flatten the field even with large sensors (up to Full Frame sensors with 23x16mm dimensions) allowing you to record perfect pictures!



You can order this field flattener with, on camera side, a T2 thread (M42x0,75) or a M48 thread (48x0,75 male) to connect CCD or DSLR cameras. This field flattener, to work at its best, needs you to place the camera's sensor at 55mm from the field flattener rear thread. On the telescope side, you can also find a M48 thread to connect 50,8mm filters: in this way you can simply add a filter, for example for the light pollution reduction.


Nikon D810a FullFrame camera connected to the AIRY APO104T triplet refractor using the Deluxe Field Flattener with M48 thread.


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  1. Ottimo!!! review by Domenico on 10/14/2015
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    Preso con AIRY APO104T, lo spianatore che fa esattamente quello che dice senza troppe tribolazioni, basta metterlo alla distanza corretta ed il gioco è fatto...60mm di backfocus sono perfetti per la mia configurazione, 55mm sarebbe stato inopportuno...Grande PrimaLuceLab...Fantastico!!!!

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