Shanghai Optics - Stock Projection Lenses

Unit of Measure

Items	SO-PJ-030-25 3 mm Stock Projection Lens	SO-PJ-044-230 4.4 mm Stock Projection Lens	SO-PJ-045-25 4.5 mm Stock Projection Lens	SO-PJ-048-25 4.8 mm Stock Projection Lens	SO-PJ-068-30 6.75 mm Stock Projection Lens
Focal Length	N/A 3 mm	N/A 4.4 mm	N/A 4.5 mm	N/A 4.8 mm	N/A 6.75 mm
Image Circle	N/A 9.072	N/A 14	N/A 13.84	N/A 14.868	N/A 19.882
Maximum Half Angle	N/A 92 º	N/A 97.5 º	N/A 93 º	N/A 93 º	N/A 90 º
F-Number	N/A F/2.5	N/A F/23	N/A F/2.5	N/A F/2.5	N/A F/3
Focusing Range	N/A 600 mm- ∞	N/A 1 m- ∞	N/A 800 mm- ∞	N/A 800 mm- ∞	N/A 800 mm- ∞
Transmittance	N/A 81-89 %	N/A 80 %	N/A 80 %	N/A 80 %	N/A >82 %
MTF Center	N/A 66%@66 lp/mm	N/A 74%@42 lp/mm	N/A 70%@66 lp/mm	N/A 72%@66 lp/mm	N/A 55%@46 lp/mm
MTF Edge	N/A 60%@66 lp/mm	N/A 25%@42 lp/mm	N/A 40%@66 lp/mm	N/A 45%@66 lp/mm	N/A 20%@46 lp/mm
Relative Illum	N/A >95 %	N/A	N/A 95 %	N/A 95 %	N/A 95 %