Talk:APO-EXTENDER-R 2x

Compatible Lenses and Focal Lengths:

• 50 mm f/2 - 100 mm f/4; 60 mm f/2.8 - 120 mm f/5.6
• 90 mm f/2 - 180 mm f/4; 100 mm f/2.8 APO - 200 mm f/5.6 APO
• 180 mm f/2 APO - 360 mm f/4 APO
• 180 mm f/2.8 APO - 360 mm f/5.6 APO; 280 mm f/4 APO - 560 mm APO
• 280 mm f/2.8 APO - 560 mm f/5.6 APO; 400 mm f/2.8 APO - 800 mm f/5.6 APO
• 400 mm f/4 APO - 800 mm f/8 APO
• 560 mm f/4 APO - 1100 mm f/8 APO; 560 mm f/5.6 APO - 1100 mm f/11 APO
• 800 mm f/5.6 APO - 1600 mm f/11 APO; 35-70 mm f/4 - 70-140 mm f/8
• 70-180 mm f/2.8 APO - 140-360 mm f/5.6 APO; 80-200 mm f/4 - 160-400 mm f/8
• 105-280 mm f/4.2 - 210-560 mm f/8.4

Overgaard's Apo-Extender-R X2 list (for use with 50mm f1.4. 50mm f2.0, 60mm f2.8, 80mm f/1.4, 90mm f2.0 APO ASPH, 100mm f2.8 APO, 180mm f2.0 APO, 180mm f2.8 APO, 280mm f2.8 APO, 280mm f4.0 APO, 400mm f2.8 APO, 400mm f4.0 APO, 560mm f4.0 APO, 560mm f5.6 APO, 800mm f5.6 APO and 28-90mm f2.8-4.5, 35-70mm f4.0, 70-180mm f2.8 APO, 80-200mm f4.0 and 105-280mm f2.4).