Bolt Case Specifications and Compatibility Information

If your eyepiece is not listed in the table below, please measure its maximum height and width and choose one of the cases based on the dimensions provided. We regret we cannot help you with choosing bolt cases for eyepieces we do not sell.


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Dimensions (mm)
Dimensions (inches)
Eyepiece Compatibility (without foam)
Case Size
Inside Diameter
Length (w/o foam)
Inside Diameter
Length (w/o foam)
 
 
 

37x60mm
37
60-80
1.4
2.4-3.1
- 0.965" eyepieces
- Small 1.25" eyepieces (e.g., small Plossls and Kellners; older orthoscopics)
42x60mm
42
60-90
1.7
2.4-3.5
- Larger 1.25" eyepieces
- Brandons (Vernonscope and Questar)
- Celestron NexStar, Omni, and E-Lux Plössls (32mm and shorter)
- Celestron SMAs
- Celestron Ultimas (18mm and shorter)
- Celestron 1.25" 15mm and 19mm Axioms
- Meade Series 3000 Plossls (25mm and shorter)
- Takahashi LE (24mm and shorter)
- Takahashi 0.965" Orthos
- Tele Vue 8, 11, 15, 20, and 25mm Plossls
- TeleVue 15mm Panoptic
- Tele Vue 4.8mm Nagler
42x80mm
42
80-130
1.7
3.1-5.1
- Shorter barlows
- Longer 1.25" eyepieces
- Tele Vue 7mm Nagler
52x80mm
52
80-130
2.0
3.1-5.1
- Barlows (All 1.25" Celestron, Meade, Vernonscope, etc.)
- Larger 1.25" eyepieces
- Celestron 23mm Axiom
- Celestron Ultimas (30mm and longer)
- Meade Series 3000 40mm Plossl
- All Tele Vue Radians
- All TeleVue Type 6 Naglers
- Tele Vue 32 and 40mm Plossls
- Tele Vue 15 and 19mm Panoptics
- TeleVue 1.25" Barlows and Powermates (except 3x)
- Zoom eyepieces (including Celestron, Vixen, Meade and Tele Vue)
52x120mm
65
120-205
2.0
4.7-8.0
- Longer 1.25" barlows (typically 3x and variable power barlows)
- 1.25" laser collimators from GSO, Antares and others
65x50mm
65
50-75
2.6
~2.0-3.0
- Focal reducers*
- Thick 2" filters*
- SCT skylight filters, adapters, etc.*
65x80mm
65
80-130
2.6
3.1-5.1
- 2" eyepieces
- Pentax 14, 21, 28, and 40mm XL
- Tele Vue 9mm Nagler 
- Tele Vue 22mm Panoptic
- Vixen Lanthanum SW 13, 17, and 22mm
- Reticle eyepieces (Celestron 12mm Microguide, Celestron 10mm cordless IR, Meade 9mm/12mm corded/cordless IR, Meade 12mm Astrometric, Takahashi 5mm cordless IR, etc.)
65x120mm
65
120-200
2.6
4.7-7.9
- Barlows (Meade #122, Meade #127, Tele Vue 1.25" 3x)**
- Longer 2" eyepieces
- GSO 2" Superview and Kellner
- Pentax 5.2, 7, 10.5, 40 and Zoom XL
- Takahashi 50mm LE
- Tele Vue 12, 17, and 22mm Nagler
- Tele Vue 55mm Plossl
- Tele Vue 22mm and 27mm Panoptics
- Tele Vue Ethos
- Vixen Lanthanum SW 3.5, 5, and 8mm
85x120mm
85
125-195
3.3

4.7-7.7
- Celestron 2" Axiom eyepieces (19mm requires additional foam inserts)
- TeleVue 26mm and 31mm Nagler
- TeleVue 35mm Panoptic
- TeleVue 2" 2x Big Barlow
- TeleVue Paracorr and 2" 4x Powermate (1.25" adapter needs to be removed/stored separately)
105x120mm
105
125-190
4.9
4.7-7.5
- Meade 2" Series 5000 24mm and 30mm Ultra Wide
- Meade 2" Series 5000 40mm Super Wide

* Might require additional foam inserts
** Length well-suited. Will require additional padding around the sides.