Binorum SuperStrong 1.25″ Variable Projection Adapter
The Binorum SuperStrong 1.25″ projection adapter is a versatile astrophotography accessory that opens the door to photographing the Moon and planets using your DSLR or mirrorless camera. This adapter offers two different imaging methods - prime focus photography and projection photography with an eyepiece - providing flexibility in achieving optimal image scale for different objects.
Two Astrophotography Methods in One Adapter
Prime Focus (Without Eyepiece)
In prime focus mode, you connect the camera directly to the telescope without using an eyepiece. Light from the telescope falls directly onto the camera sensor, providing the sharpest possible image with minimal optical elements in the light path. This method is ideal for photographing the Moon, where you want to capture maximum detail with minimal optical distortion.
Image scale in prime focus depends directly on your telescope's focal length. For obtaining detailed shots of smaller objects, this mode can be combined with a Barlow lens to increase the effective focal length.
Eyepiece Projection (With Eyepiece)
The projection method uses an eyepiece positioned between the telescope and camera. The eyepiece projects a magnified image of the object onto the camera sensor, significantly increasing the image scale. This technique is invaluable for planetary photography, where you need very high magnification to capture details on Jupiter, Saturn, Mars, or for detailed shots of lunar craters.
The variable construction of the adapter allows you to change the distance between the eyepiece and camera, enabling you to fine-tune the resulting magnification and image scale. Longer projection distance means greater magnification - this flexibility allows you to optimize settings for specific seeing conditions and object size.
Technical Specifications
The adapter has a standard 1.25″ input diameter that inserts into the telescope focuser just like a regular eyepiece. The internal clamping mechanism accommodates 1.25″ eyepieces and eyepieces of larger dimensions (depending on eyepiece barrel construction), providing broad compatibility with various eyepiece types.
The output end is equipped with T2 threading (M42x0.75) for camera attachment using the appropriate T-ring specific to your camera brand. T-rings are sold separately for Nikon, Canon, Sony, and other camera manufacturers.
The robust SuperStrong metal construction ensures stability and resistance to flexure, which is crucial in planetary photography where even minimal vibrations or movement can degrade image quality. Precisely machined threads ensure secure connection of all components.
Universal Compatibility
The Binorum SuperStrong projection adapter has a standard 1.25″ diameter, so you can use it with professional or amateur telescope models of any design and brand - refractors, Schmidt-Cassegrain telescopes, Maksutov-Cassegrain systems, and Newtonian reflectors equipped with 1.25″ focusers.
Powerful Assistant for Lunar and Planetary Astrophotography
This adapter is designed specifically for photographing the Moon and planets, where its ability to provide high image scale through eyepiece projection delivers excellent results. Planets are relatively small objects in the sky, so they require high effective focal lengths to obtain a sufficiently large image on the sensor. Eyepiece projection allows achieving image scales that would otherwise require extremely long and impractical telescopes.
When photographing, you can experiment with different eyepieces and projection distances to find the optimal combination for the specific object and conditions. Shorter eyepiece focal lengths generally provide higher projection magnification.
What You Will Need
To assemble complete astrophotography equipment, you will need in addition to this adapter:
- T-ring (T2 ring) specific to your camera brand and model - sold separately
- DSLR or mirrorless camera with manual focus capability
- For eyepiece projection: suitable eyepiece (typically medium to short focal lengths 10-25mm)
- Stable telescope mount to minimize vibrations during exposure
Why Choose Binorum
Binorum is a brand focused on providing quality astronomical accessories at reasonable prices. Binorum products are designed with emphasis on practical use and field reliability. The SuperStrong series represents robust construction with precise machining that ensures long service life and consistent performance. Each adapter undergoes quality control to meet the demands of serious astrophotographers. With Binorum, you receive professional tools that allow you to focus on capturing the beauty of the universe, rather than being troubled by technical equipment problems.
