![agena eyepiece agena eyepiece](https://agenaastro.com/media/catalog/product/cache/3565525cfb8e7e808ef3218eb669a321/w/o/wo-xwa20-1s.jpg)
It is all combined in one lightweight eyepiece-sized device. The fully optimised design eliminates the need for adapters. Both are available for the same low price!
![agena eyepiece agena eyepiece](https://agenaastro.com/media/catalog/product/4/2/42mm.jpg)
Choose prominences or surface (Chromosphere) detail. Now observers can buy a filter based on their desired observing goals instead of their budget. This highly specialised telecentric lens offers superior field flatness.Įxact filter bandpass will vary based on final telescope application, so QUARK* assemblies are qualified to show either prominence or surface (chromosphere). The patent pending QUARK* contains a custom Daystar Instruments 4.2X telecentric barlow lens fully optimised in coatings and optical design specifically for the Hydrogen Alpha wavelength. Just insert in your diagonal, add an eyepiece and view. The user needn't worry about configurations. Through design efficiency and optimisation, now users can enjoy the known high quality optics of DayStar* at an affordable price.įor use on refractors of F/4 to F/8**. This new, all-in-one design marries high quality components of a telecentric barlow, adapters, snouts and Daystar hydrogen alpha filter into one simple assembly. Part Number: DSZ4C DayStar Quark Hydrogen Alpha 'Eyepiece' Prominences appear bright and detailed against a jet black background sky again with no sweet spot issues." BBC Sky Night Magazine About this product Seeing prominences via the chromosphere filter leads you into the false sense that the prominence filter view isn’t going to be that much better. Switching from the chromosphere to the prominence model delivers a whole new experience. The field of view has great contrast and is without gradients or noticeable sweet spots. Despite its optimisation, this version can also show limb detail including prominences and the short-lived jets of gas known as spicules. The chromosphere-optimised version shows plenty of fine detail, from dark fibrils, filaments and plage to intricate magnetic maelstroms surrounding active regions. The small wait for each filter to get to temperature fills you with anticipation and your eventual opportunity to look through the eyepiece or via a camera certainly doesn’t disappoint.ĭespite the diminutive (in hydrogen-alpha terms) price tag, both models perform impressively.