由 willis » 2010-05-18, 00:05
Last night we tried this F4 Pentax. The finish is good and the tube is strongly built. In terms of visual performance, it certainly cannot beat nowadays APO. The CA is similar to a good ED doublet. The photo spoke for the photographic performance already. I would say it is a good collector items.
Tak FS60C, APM-LOMO 80/480, APM-TMB 105/650, SW Black Diamond 120ED, Borg 125SD, SW 12" Dobs , Lunt LS35T, Lunt LS80T
TMB Super Mono 4mm, Pentax XO 2.5mm, Baader Planetarium 8-24mm, Nagler (2-4mm, 3-6mm, 13mm), Ethos (3.7mm, 6mm, 10mm), Explore Scientific 100º (14mm, 20mm)
DBK 21, DMK 21, DMK 41, DMK 51, ASI 178MC
Nikon D810A, Canon 5D II, Fujifilm X-T10