William Optics Adjustable Field Flattener 73A for Z73 Telescope
Availability: Item has been discontinued by the manufacturer
Contiguous US Customers:
All items we sell ship for free within the Contiguous US. Shipping will be via the cheapest shipping method which will vary depending on the items in your order. During checkout, you may also be shown other optional faster shipping choices.
US Customers in Hawaii and Alaska:
Free shipping applies to almost all products. A few large telescopes and mounts are excluded from this free shipping offer. For these items, please contact us to obtain a shipping quote before you check out using the online shopping cart.
International Customers:
Free shipping does not apply to international orders. During check-out, you will be presented with several shipping choices and costs. However, the export of some items may be restricted outside the US due to size or manufacturer restrictions.
Dedicated 2" flattener by William Optics optimized for use with their Z73 full-frame Apo telescope.
- Features an M63 male thread for a direct threaded connection to the Z73 on the telescope side.
- On the camera side, the flattener has a male M48x0.75 thread. You can use your Canon or Nikon DSLR directly with the use of an optional M48 camera-specific T-ring (sold separately).
- With this, your camera chip will be placed at the correct 55mm working distance.
- Note that you cannot use this with the smaller T rings that have a 42mm T thread.
- For other cameras with shorter back-focus, you will need to add additional spacers/adapters to acheive the required working distance.
- True 1:1 flattener with no reduction.
- The WO Flat73A also has a female M48x0.75 (2" filter thread) on the inside to which you can attach standard 2" filters. Since the male thread of your filter will face the telescope within this item, you can only use bidirectional filters with this item in which the orientation of the filter does not matter.
- A very neat fature of this item is that a rotator/camera angle adjuster is built into the mechanism of this item, making a separate rotator unnecessary.
Compatibility:
- Zenithstar 73
- Back Focus: 66.2mm
- Adjust Distance: 11.4mm
- Image Circle: ∅43mm
Specifications:
- Lens Type: 2 Groups 2 Elements
- Length Flattener: 39.5 mm + Rotator/Adapter 26 mm
- Telescope Thread: M63 x 1 x 6 mm
- T-mount Thread: M48 x 0.75 x 4 mm
- T-mount Supported: Canon EF, RF Nikon F, Z Sony E Pentax K MFT (M4/3) FUJI X
- Camera Format: > Full Frame
- Weight: 328.8 g / 0.72 lbs
| Product Banner Type | sale |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |
Dedicated 2" flattener by William Optics optimized for use with their Z73 full-frame Apo telescope.
- Features an M63 male thread for a direct threaded connection to the Z73 on the telescope side.
- On the camera side, the flattener has a male M48x0.75 thread. You can use your Canon or Nikon DSLR directly with the use of an optional M48 camera-specific T-ring (sold separately).
- With this, your camera chip will be placed at the correct 55mm working distance.
- Note that you cannot use this with the smaller T rings that have a 42mm T thread.
- For other cameras with shorter back-focus, you will need to add additional spacers/adapters to acheive the required working distance.
- True 1:1 flattener with no reduction.
- The WO Flat73A also has a female M48x0.75 (2" filter thread) on the inside to which you can attach standard 2" filters. Since the male thread of your filter will face the telescope within this item, you can only use bidirectional filters with this item in which the orientation of the filter does not matter.
- A very neat fature of this item is that a rotator/camera angle adjuster is built into the mechanism of this item, making a separate rotator unnecessary.
Compatibility:
- Zenithstar 73
- Back Focus: 66.2mm
- Adjust Distance: 11.4mm
- Image Circle: ∅43mm
Specifications:
- Lens Type: 2 Groups 2 Elements
- Length Flattener: 39.5 mm + Rotator/Adapter 26 mm
- Telescope Thread: M63 x 1 x 6 mm
- T-mount Thread: M48 x 0.75 x 4 mm
- T-mount Supported: Canon EF, RF Nikon F, Z Sony E Pentax K MFT (M4/3) FUJI X
- Camera Format: > Full Frame
- Weight: 328.8 g / 0.72 lbs
| Product Banner Type | sale |
|---|---|
| Free Shipping Graphic | Free US Shipping |
| Hide Found a better Shipped Price on Frontend? | No |