7 lenses (6 good, 1 maybe)
| IR | Focal Length |
Minimum Aperture |
Lens | Filter | Weight | Notes | Images |
|---|---|---|---|---|---|---|---|
| Good | 31mm | ƒ/1.8 | smc PENTAX-FA 31mm F1.8 AL Limited |
⌀58mm | 350 g | No hotspot. | |
| Good | 35mm | ƒ/2.8 | smc PENTAX-DA 35mm F2.8 Limited Macro KEH |
⌀49mm | 215 g | My best lens on my converted Pentax K-7; good sharpness wide open; very sharp at ƒ/5.6 and above. Charles Kinghorn | |
| Good | 43mm | ƒ/1.9 | smc PENTAX-FA 43mm F1.9 Limited |
⌀49mm | 155 g | No hotspot. | |
| Good | 50mm | ƒ/1.7 | smc PENTAX-M 50mm F1.7 |
⌀49mm | 185 g | No hotspot. | |
| Good | 77mm | ƒ/1.8 | smc PENTAX-FA 77mm F1.8 Limited |
⌀49mm | 270 g | Hotspot starts at f/11, but it’s usable up to f/22. | |
| Maybe | 85mm | ƒ/1.4 | smc PENTAX-FA* 85mm F1.4 IF |
⌀67mm | 620 g | Hotspot starts at f/8, but it’s usable up to f/22. | |
| Good | 135mm | ƒ/1.8 | smc PENTAX-A* 135mm F1.8 |
⌀77mm | 865 g | No hotspot. (The same lens also appears in the sheet mislabeled as Nikon F mount with a conflicting “hotspot from f/8” note — this Pentax K row is the correctly-mounted one and takes precedence.) |