PENTAX FILTERS
Pentax Lens Filter Sizes
The following table lists all Pentax K-Mount lenses and their filter sizes. For an explanation of what the various lens designations mean, see the Lens Compatibility Page.
K Series M Series A Series AF Series F Series FA Series FA-J Series D-FA Series DA Series DA-L Series |
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"K" Series | ||||
| Lens | Filter | Lens | Filter | |
| K 100/4 Bellows | 52 | K 28/3.5 Shift | --- | |
| K 100/4 Macro | 52 | K 28-50/3.5-4.5 | 52 | |
| K 1000/11 Reflex | 52 | K 30/2.8 | 52 | |
| K 1000/8 | 52 | K 300/4 | 77 | |
| K 105/2.8 | 52 | K 35/2 | 52 | |
| K 120/2.8 | 52 | K 35/3.5 | 52 | |
| K 135/2.5 | 58 | K 400/5.6 | 77 | |
| K 135/3.5 | 52 | K 400-600/8-12 Reflex | 67 | |
| K 135-600/6.7 | 52 | K 45-125/4 | 58 | |
| K 15/3.5 | --- | K 50/1.2 | 52 | |
| K 15/3.5 AL | --- | K 50/1.4 | 52 | |
| K 150/4 | 52 | K 50/4 Macro | 52 | |
| K 17/4 Fisheye | --- | K 500/4.5 | 52 | |
| K 18/3.5 | 58 | K 55/1.8 | 52 | |
| K 20/4 | 58 | K 55/2 | 52 | |
| K 200/2.5 | 77 | K 8.4/2.8 Fisheye | --- | |
| K 200/4 | 58 | K 80-200/4.5 | 52 | |
| K 2000/13.5 Reflex | 52 | K 85/1.8 | 52 | |
| K 24/2.8 | 52 | K 85/2.2 Soft | 49 | |
| K 24/3.5 | 58 | K 85-210/3.5 | 67 | |
| K 28/2 | 52 | K 85-210/4.5 | 58 | |
| K 28/3.5 | 52 | |||
"M" Series | ||||
| Lens | Filter | Lens | Filter | |
| M 100/2.8 | 49 | M 35/1.4 | 58 | |
| M 100/4 Dental Macro | 49 | M 35/2 | 49 | |
| M 100/4 Macro | 49 | M 35/2.8 | 49 | |
| M 120/2.8 | 49 | M 35-70/2.8-3.5 | 58 | |
| M 135/3.5 | 49 | M 40/2.8 | 49 | |
| M 150/3.5 | 49 | M 400/5.6 | 77 | |
| M 20/4 | 49 | M 40-80/2.8-4 | 49 | |
| M 200/4 | 52 | M 50/1.4 | 49 | |
| M 2000/13.5 Reflex | 52 | M 50/1.7 | 49 | |
| M 24-35/3.5 | 58 | M 50/2 | 49 | |
| M 24-50/4 | 58 | M 50/4 Macro | 49 | |
| M 28/2 | 49 | M 75-150/4 | 49 | |
| M 28/2.8 | 49 | M 80-200/4.5 | 52 | |
| M 28/3.5 | 49 | M 85/2 | 49 | |
| M 28-50/3.5-4.5 | 52 | M* 300/4 | 77 | |
"A" Series | ||||
| Lens | Filter | Lens | Filter | |
| A 100/2.8 | 49 | A 35-70/3.5-4.5 | 49 | |
| A 100/2.8 Macro | 58 | A 35-70/4 | 58 | |
| A 100/4 Dental Macro | 49 | A 35-80/4-5.6 | 49 | |
| A 100/4 Macro | 49 | A 400/5.6 | 77 | |
| A 135/2.8 | 52 | A 50/1.2 | 52 | |
| A 15/3.5 | --- | A 50/1.4 | 49 | |
| A 16/2.8 Fisheye | --- | A 50/1.7 | 49 | |
| A 20/2.8 | 67 | A 50/2 | 49 | |
| A 200/4 | 52 | A 50/2.8 Macro | 49 | |
| A 24/2.8 | 52 | A 70-210/4 | 58 | |
| A 24-50/4 | 58 | A 80-200/4.7-5.6 | 49 | |
| A 28/2 | 49 | A* 1200/8 ED [IF] | 150/49 | |
| A 28/2.8 | 49 | A* 135/1.8 | 77 | |
| A 28-135/4 | 77 | A* 200/2.8 ED | 77 | |
| A 28-80/3.5-4.5 | 58 | A* 200/4 Macro ED | 58 | |
| A 35/2 | 49 | A* 300/2.8 ED [IF] | 112/49 | |
| A 35/2.8 | 49 | A* 300/4 | 77 | |
| A 35-105/3.5 | 67 | A* 400/2.8 ED [IF] | 145/49 | |
| A 35-135/3.5-4.5 | 58 | A* 600/5.6 ED [IF] | 112/49 | |
| A 35-210/3.5-4.5 | 67 | A* 85/1.4 | 67 | |
"AF" Series | ||||
| Lens | Filter | |||
| AF 35-70/2.8 | 58 | |||
"F" Series | ||||
| Lens | Filter | Lens | Filter | |
| F 100/2.8 Macro | 58 | F 35-80/4-5.6 | 49 | |
| F 100-300/4.5-5.6 | 58 | F 50/1.4 | 49 | |
| F 135/2.8 [IF] | 52 | F 50/1.7 | 49 | |
| F 17-28/3.5-4.5 Fisheye | --- | F 50/2.8 Macro | 52 | |
| F 24-50/4 | 58 | F 70-210/4-5.6 ED | 49 | |
| F 28/2.8 | 49 | F 80-200/4.7-5.6 | 49 | |
| F 28-80/3.5-4.5 | 58 | F 85/2.8 Soft | 52 | |
| F 35-105/4-5.6 | 58 | F* 250-600/5.6 ED [IF] | 43 | |
| F 35-135/3.5-4.5 | 58 | F* 300/4.5 ED [IF] | 67 | |
| F 35-70/3.5-4.5 | 49 | F* 600/4 ED [IF] | 43 | |
"FA" Series | ||||
| Lens | Filter | Lens | Filter | |
| FA 100/2.8 Macro | 58 | FA 35-80/4-5.6 | 49 | |
| FA 100/3.5 Macro | 49 | FA 43/1.9 Limited | 49 | |
| FA 100-300/4.5-5.6 | 58 | FA 50/1.4 | 49 | |
| FA 100-300/4.7-5.8 | 58 | FA 50/1.7 | 49 | |
| FA 135/2.8 [IF] | 52 | FA 50/2.8 Macro | 52 | |
| FA 20/2.8 | 67 | FA 70-200/4-5.6 | 49 | |
| FA 20-35/4 AL | 58 | FA 77/1.8 Limited | 49 | |
| FA 24-90/3.5-4.5 AL [IF] | 67 | FA 80-200/4.7-5.6 | 49 | |
| FA 28/2.8 AL | 49 | FA 80-320/4.5-5.6 | 58 | |
| FA 28/2.8 Soft | 49 | FA 85/2.8 Soft | 52 | |
| FA 28-105/3.2-4.5 AL [IF] | 58 | FA* 200/2.8 ED [IF] | 77 | |
| FA 28-105/4-5.6 | 58 | FA* 200/4 Macro ED [IF] | 67 | |
| FA 28-105/4-5.6 [IF] | 62 | FA* 24/2 AL [IF] | 67 | |
| FA 28-200/3.8-5.6 AL [IF] | 72 | FA* 250-600/5.6 ED [IF] | 112/43 | |
| FA 28-70/4 AL | 52 | FA* 28-70/2.8 AL | 67 | |
| FA 28-80/3.5-4.7 | 58 | FA* 300/2.8 ED [IF] | 112/43 | |
| FA 28-80/3.5-5.6 | 58 | FA* 300/4.5 ED [IF] | 67 | |
| FA 28-80/3.5-5.6 AL | 58 | FA* 400/5.6 ED [IF] | 77 | |
| FA 28-90/3.5-5.6 | 58 | FA* 600/4 ED [IF] | 150/43 | |
| FA 31/1.8 AL ED Limited | 58 | FA* 80-200/2.8 ED [IF] | 77 | |
| FA 35/2 AL | 49 | FA* 85/1.4 [IF] | 67 | |
"FA-J" Series |
"D-FA" Series |
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| Lens | Filter | Lens | Filter | |
| FA-J 18-35/4-5.6 AL | 67 | D-FA 50/2.8 Macro | 49 | |
| FA-J 28-80/3.5-5.6 AL | 58 | D-FA 100/2.8 Macro | 49 | |
| FA-J 75-300/4.5-5.8 AL | 58 | D-FA 100/2.8 WR Macro | 49 | |
"DA" Series | ||||
| Lens | Filter | Lens | Filter | |
| DA 10-17/3.5-4.5 Fisheye ED [IF] | --- | DA 55-300/4-5.8 ED | 58 | |
| DA 12-24/4 AL ED [IF] | 77 | DA 70/2.4 Limited | 49 | |
| DA 14/2.8 ED [IF] | 77 | DA 18-250/3.5-6.3 AL ED [IF] | 62 | |
| DA 15mm F4 ED AL Limited | --- | DA 18-270/3.5-6.3 ED SDM | 62 | |
| DA 16-45/4 AL ED | 67 | DA* 16-50/2.8 ED/AL [IF] SDM | 77 | |
| DA 17-70/4 AL [IF] SDM | 67 | DA* 50-135/2.8 ED [IF] SDM | 67 | |
| DA 18-55/3.5-5.6 AL | 52 | DA* 55/1.4 SDM | 58 | |
| DA 18-55/3.5-5.6 AL II | 52 | DA* 60-250/4 ED [IF] SDM | 67 | |
| DA 18-55/3.5-5.6 AL WR | 52 | DA* 200/2.8 ED [IF] SDM | 77 | |
| DA 18-135/3.5-5.6 ED-AL-IF-DC-WR | 62 | DA* 300/4 ED [IF] SDM | 77 | |
| DA 21/3.2 AL Limited | 49 | DA 560/5.6 ED AW | 112/40.5 | |
| DA 40/2.8 AL Limited | 49 | DA 50/1.8 | 52 | |
| DA 35/2.4 AL | 49 | DA 40/2.8 XS | 27 | |
| DA 35/2.8 Macro Limited | 49 | DA 50/2.8 Macro | 49 | |
| DA 50-200/4-5.6 ED | 52 | DA 20-40/2.8-4 ED Limited DC WR | 55 | |
| DA 50-200/4-5.6 ED WR | 49 | |||
"DA-L" Series | ||||
| Lens | Filter | Lens | Filter | |
| DA L 18-55mm F3.5-5.6AL | 52 | DA L 50-200mm F4-5.6ED | 52 | |
| DA L 55-300mm F4-5.8AL | 58 | |||
Super telephoto lenses may list two filter sizes (112/49), a filter for use in front of the lens (the larger size) and a drop-in filter used in a filter holder in the middle of the lens (the smaller size).
Pentax Filters
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NOTE: The Pentax "Cloudy" filter is equivalent to a Wratten #81A