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EXPLORE SCIENTIFIC 8x50 helical focus finder and guide with 1.25 inch and T2 connection
EXP0620170
Stock at Supplier
164.42
VAT excluded
Shipping 5/7d
Excellent 8x50 finder with removable eyepiece unit, illuminated reticle and precision helical focusing, as well as 1.25 inch and T2 connection for "autoguiding"
Delivery Options
| Carrier | Description | Estimated Delivery | ||
|---|---|---|---|---|
 |
Home delivery - International | Home delivery - International |
Wednesday, 18 December - Wednesday, 25 December |
|
Home delivery - International
Home delivery - International
Estimated delivery:
Wednesday, 18 December - Wednesday, 25 December
✖
Excellent 8x50 finder with removable eyepiece unit, illuminated reticle and precision helical focusing, as well as 1.25-inch and T2 connection for "autoguiding"
- Universal 50 mm guide and finder telescope for universal use
- Removable eyepiece unit with illuminated reticle
- Compact tracking unit for autoguiding with helical focus
- Camera mounting via 1.25" or T2 thread connection
- focusing plane approx. 22 mm behind the T2 thread
- Very large field of view FOV 6.96 degrees
- Lens focal length: 220 mm, focusing distance: 28 mm
- Lens surface with FMC multi-coating - clear field of view
- Separate focus for field of view and reticle
- Suitable for EXPLORE SCIENTIFIC, BRESSER MESSIER, etc.
Universally usable 50 mm guide and finder telescope with a focal length of 220 mm
Excellent 8x50 finder with removable eyepiece unit and reticle with adjustable red illumination. The precision helical focusing and the possibility of connection via 1.25 inch/31.7 mm connector as well as the T2 connection thread for camera (M42x0.75 mm) allow the necessary "autoguiding" for long exposures in order to obtain a pinpoint image of the stars. Use as a mini travel telescope is also possible.
High quality 8x50 finder with adjustable reticle illumination
The sharpness of the images and the viewing characteristics make this finder clearly above the level of conventional 8x50 finders. The field of view generated is clear and extremely sharp. In addition, this finder has a very large field of view (FOV) of 6.96 degrees. This greatly facilitates the search for and adjustment of objects. The scale marks (division = 1 degree) on the reticle are a good reference for estimating distances and the open center mark also facilitates precise object centering. All lens surfaces are protected against weathering by multi-coating and ensure a clear image of the finder due to high light transmission values. The dimmable red LED illumination is powered by two LR41 button cells. The main objective and reticle can be focused independently, so you can set the perfect focus for your eyes.
Compact tracking unit for "autoguiding"
One of the main applications of this telescope is what is called "autoguiding". With this function, the usually larger photography optics are actively corrected by a smaller guiding telescope with a second tracking camera. This means that the mechanical oscillations that occur in all astronomical telescope mounts in the tracking accuracy are measured by the tracking camera and compensated appropriately. This is necessary to obtain an image of the point stars at long exposures in astrophotography, and to avoid stellar trails. For this purpose, the guide telescope is mounted on the finder shoe of the photographic optics and oriented parallel to it. If the existing finder shoe is not compatible, a suitable finder shoe, which is included, can be used. A follow camera can then be mounted with the 1.25 inch /31.7 mm connection at the rear end or via the T2 thread connection (M42x0.75 mm). This is held securely in place by a brass locking ring and three retaining screws. Please note the "back focus" required for your tracking camera. The plane of focus (back focus) is approx. 22 mm behind the T2 thread. Precise focusing to the guide star is achieved by means of a large knurled helical focusing wheel made of precision mechanics. To facilitate reproduction of the focus point, this has a laser-engraved white millimeter scale from 0 to 28 mm. Once the tracking camera has been connected directly or via computer to the telescope mount and the necessary basic adjustments have been made, the first astronomical pictures with long exposure can be taken.
Use as a mini travel telescope
This guide and finder telescope can also be used very easily as a mini travel telescope. By means of optionally available eyepieces it is possible to achieve a magnification of 8x to 40x. Almost all eyepieces with a focal length of 5 to 26 mm and a 1.25 inch/31.7 mm connection are suitable. Especially recommended are the EXPLORE SCIENTIFIC eyepieces of the LER series of 52 degrees (art. 02195xx) and 62 degrees (02196xx). Note: only direct viewing is possible.
Metal finder holder and finder shoe for metal finder
the mount of this finder and guide telescope is made entirely of aluminum and forms a stable base. The finder mount is suitable for many common telescope types, e.g. EXPLORE SCIENTIFIC, BRESSER MESSIER, etc. If the existing finder shoe is not compatible, a suitable finder shoe, which is included, can be used. It can be attached to the telescope tube using four M5 screws. The distances between the holes of the finder shoe are 31.7 mm in the longitudinal and transverse axis. With the six large adjusting screws with knurled grip, the finder can be oriented effortlessly, even with numb fingers. All adjustment and clamping screws have plastic tips to effectively prevent scratching of the finder housing and holder.
FEATURES
- Excellent 8x50 guide and finder telescope
- Can also be used as a mini travel telescope
- Perfect image sharpness and good viewing characteristics
- FMC multi-coated lens surfaces
- Lens focal length: 220 mm
- Max. allowable camera weight: 550 g
- Removable eyepiece/reticle unit
- Camera connection via 1.25 inch/31.7 mm connector or T2 thread
- T2 thread: M42 x 0.75 mm
- Precision helical focus to focus the field of view
- Helical focus adjustment range: 28 mm
- Minimum focusing distance: 3 m
- Laser engraved millimeter scale from 0 to 28 mm on focusing mechanism
- The back focus plane is approx. 22 mm behind the T2 thread
- Focusing separated from the reticle in the eyepiece
- Very large field of view FOV of 6.96 degrees
- With adjustable red reticle illumination
- Reticle scale markings with 1.0 degree division
- Power supply: two LR41 button cell batteries
- Brass locking ring and three retaining screws on the 1.25 inch connection
- With optional eyepieces, magnifications from 8x to 40x can be achieved
- Almost all eyepieces with 1.25 inch/31.7 mm connection are suitable
- The finder telescope mount is made entirely of aluminum
- Finder mount with six large adjusting screws with knurled grip
- Finder shoe suitable for EXPLORE SCIENTIFIC, BRESSER MESSIER, etc.
- A suitable finder shoe is additionally included
- The distances between the holes of the finder shoe are 31.7 mm in the longitudinal and transverse axis
- Adjusting and clamping screws have plastic tips
SCOPE OF DELIVERY
- 8x50 finder/guide telescope
- Eyepiece unit with reticle
- Reticle illumination incl. batteries
- Finder mount with finder shoe
Technical Specifications
| GENERAL TECHNICAL DATA | |
|---|---|
| Color | black |
| Material | Aluminum |
| Extended warranty (years) | 10 |
| DIMENSIONS & WEIGHTS | |
| Overall length | 250 mm |
| Total width | 140 mm |
| Overall height | 80 mm |
| Net weight (without accessories) | 800 g |
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