Description
ASKAR FRA400 refractor
Askar presents a new refractor, currently the best-selling of the quintuplet series, the FRA400 72mm; It is an instrument suitable for astrophotography.
Thanks to the quintuplet spaced in the air, it provides a flattened field up to 44mm diagonally without the addition of further flatteners/reducers.
This new and enormous APO guarantees chromatic correction at the highest levels thanks to a precise and obsessive construction by Sharpstar; the image is not affected by any chromatic aberration and remains very clear and well contrasted.
The FRA400 refractor is the ASKAR 400mm flagship, you will not find a product with the same characteristics at a lower price!
Technical features
Improved mechanics
The very precise mechanics guarantee universal application in every astronomical field and extreme satisfaction in use.
In addition to the improvement of the optics, the FRA400 also offers improved mechanics that leave nothing to chance, in this way the performance of the apochromat can be fully exploited even in the astrophotographic field.
FPL53 air-spaced apochromatic quintuplet with multi-coating on each optical surface, this makes the optical quality very good and no chromatic aberration even at maximum magnification.
The objective of this apochromat is composed of a triplet spaced in the air also composed of elements supplied by the famous Ohara (Made in Japan), in fact the central element is composed of Ohara SuperAPO-FPL53 ED glass.
The ultra-modernized optical design allows precise optical correction across the entire wavelength range.
ASKAR quality control
One reason why ASKAR refractors are very famous and of very high quality is their quality control, in fact interferometric and optical tests are conducted on all the apochromats of the house, making the work carried out by these instruments impeccable.
ASKAR 3" Rack&Pinion focuser with integrated rotator
This refractor uses a brand new 3" ASKAR focuser, with integrated rotator that can be rotated 360° to always keep the camera in the correct position, thanks to the Rack&Pinion system, the focuser can withstand very heavy loads without any torsion problems.
The 1:10 gear mechanism offers precise focusing and is ideal for astrophotography.
Payment and security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
SCEGLI IL METODO DI PAGAMENTO RATEALE CHE PREFERISCI
