72/432 Lacerta Quadruplet Flatfield APO

The ultra-compact LACERTA 72/432 mm ED apochromat is recommended for both astronomy and nature observation, visual work and photography.

In this specfic model, the the two-lens ED objective was combined with a field flattener that also has two lenses: this four-lens combination flattens far more than an APS-C format (see unedited test photo with a Canon EOS 6D camera). Backfocus: 71 mm.

Its design (short focus, retractable dewcap) makes it ideal for travelling, hiking, or for quick field trips and sight-seeing.

Thanks to the excellent lens, the image is stunningly sharp and contrasty despite the short focus. The well-proven 72/432 MEGREZ lens was used for the construction. The special ED glass material (FPL53 Ohara/Japan and NBM51 Partner glass) allows the best colour correction currently available in a two-element ED system. The precision Bearing Type Linear zoom lens is equipped with a natural microfocusing unit that rotates along its longitudinal axis.

An aluminium case is included with the binoculars, with space prepared for eyepiece accessories.

The telescope can be mounted on both a photo stand and a telescope mechanism. The Vixen (SkyWatcher) standard prism rail has a standard photo thread at the bottom, so it can be easily mounted on practically any tripod. And the prism rail is compatible with most astronomical mechanics, so mounting is a snap.

Technical data

• Lens: FPL53 glass from Ohara/Japan with NBM51 partner glass (best possible color correction with doublet ED) 
• fast aperture ratio of f/6
• backfocus with the flattener: 71 mm
• excellent optics, usually with Strehl over 90% 
• less sensitive to adjustment problems than a triplet harmonizes well with various field flattening lenses and reducers (see test photos), making it possible to use them with multiple focal lengths screwing the corrector/camera unit to the tube little vignetting and sharp edges with full-format cameras (with flattener) 
• can be used with a diagonal mirror and normal accessories without restrictions, even for nature observation 
• STM coating (STM = superhigh-transmission) 
• eight-way ball-bearing "Octo" eyepiece extension, carries cameras weighing up to 2kg safely and without slipping 
• retractable dew cap, compact for travel (only 310mm short) 
• CNC Metal tube and CNC-machined inner panels
• lightweight and portable (only 2560 grams) 
• Tube diameter 87mm 
• Dew shield diameter 94mm