Lacerta 72/341 f/4.7 Flatfield-APO (2+3 Linsen) incl box and reducer

72/432 (f/6) Flatfield APO with 71mm working distance in aluminum case (Quadruplet: 4 lenses in 2 groups)

QUADRUPLET APO for astrophotography
The Lacerta 72mm ED-APO closes the gap between the inexpensive ED doublets and the more expensive and heavier triplet apochromats. Astrophotographers who value a particularly pure color image are well served with this APO. The two-lens ED lens was combined with a two-lens field flattener: this four-lens combination flattens far more than an APS-C format (see unprocessed test photo with a Canon EOS 6D camera). You get even better results for full format with the LWD flattener (see there).

The high-quality optical system, paired with the new Octo focuser (guided on 8 ball bearings), promises a lot of success in demanding photography. Even heavy cameras are held with good stability, focusing is very sensitive with the 1:10 micro focuser.

432mm focal length (f/6) with doublet flattener and 71mm working distance - entry into astrophotography

Delivery of this version (La72432FLAT):
72mm f/6 ED APO tube white
LFF (Lacerta Field Flattener) field flattener with M48 connection on the camera side
Vixen prism rail with 1/4" photo tripod connection
Finder shoe 
2" Octo focuser (guided on 8 ball bearings)
2" clamping ring can be unscrewed, including M54x0.75 thread for flattener
Reduction to 31.7mm (ring clamp)
1:10 micro focus reduction
Aluminum case with 2 keys