BRESSER Extension Tube 37.5 mm for 2.0" R&P Focuser

Are you having trouble focusing your eyepiece or camera? Then use this BRESSER 20 mm extension sleeve to increase the distance between the 2.0 inch Rack & Pinion focuser and the eyepiece or camera. The extension sleeve has an M54x0.75 mm internal and external thread and can therefore be screwed directly onto the HEXAFOC draw tube. Suitable for the EXPLORE SCIENTIFIC ED APO Essential series, among others.FEATURESIncreases the distance to the eyepiece/camera Suitable for 2.0 inch R&P focuser Optical length: 20 mm Internal and external thread: M54x0,75 mmInside black matt coated Material: aluminium, black anodized SCOPE OF DELIVERYExtension sleeve 20 mm (1 piece)

The Polar fine adjustment unit is an accessory designed for installation of star tracking mounts such as POLARIE and the AP Star Tracker System with attachment between the photo stand and the star tracking mount. This device enables fine horizontal and vertical adjustment with installation of a polar axis target. The swivel head, which is designed exclusively for use on the base of star trackers, can be secured or removed with a single screw. The twin screw system for inclination and azimuth adjustment ensures fine movement and rigid locking. The adjustable inclination angle of 0ﾟ～85ﾟ enables use in a range of positions and situations. The fine adjustment range can be adjusted in three steps of low (0-30 degrees), medium (30-60 degrees) and high (60-85 degrees). FEATURES Fine adjustment unit for precise pole alignment For use on the AP and Polarie Star Tracker Adjustment range from 0° to 85° Photo stand connection (for 1/4'' and 3/8'' screws) Weight: 300 g WHAT’S INCLUDED Fine adjustment unit Allen key Adapter for 3/8'' screw

For astrophotography it is essential to achieve the correct focus point with great precision. With the 1:8 Gear set precision focussing is easy. The gear set can be installed easily without difficulties and upgrades a 2,5" Hexafoc to a full 2,5" Hexafoc DeLuxe.Installation video:  https://www.youtube.com/watch?v=RCnsn2o-B94&t=144s

Take pictures with your smartphone through the telescope or microskope? With the Smartphone camera adapter this is now child's play! Simply screw the adapter to the eyepiece and use your smartphone as a camera with a super-telephoto / super-macrophoto lens. It lets you take pictures of distant objects or very small objects as if you were very close.The Deluxe version offers an even more comfortable and secure attachment to the eyepiece. By a rotary movement of the clamping ring 3 clamping jaws are evenly applied to the eyepiece housing and the Smartphone adapter sits firmly and centrically on the eyepiece. The fine adjustment of the height of the smartphone support allows a quick and precise adjustment of the viewing height of the smartphone camera above the eyepiece lens. Good image results are thus guaranteed.  FEATURES Take photos through the telescope Smartphone camera with super telephoto lens Fine Height adjustment of phone support Wide adjustment range for eyepiece housing diameter Fits 31.7mm (1.25") eyepieces For eyepiece housing diameters from 22-38mm SCOPE OF DELIVERY Smartphone holder deluxeLocking ring for the smartphone

Starlight-Instruments Feather-Touch focuser for very precise focusing.This Feather-Touch focuser allows very fine and precise focusing. The Feather-Touch focuser provides a M35x0.5 thread on the telescope-side, therefore it can be used directly at all telescopes that have a M35x0.5 thread. At the eyepiece-side there is a T2 thread and a 1.25" connection.For example this Feather-Touch focuser can be used at all Lunt Solar Systems LS40THa and LS50THa telescopes. Please note that this Feather-Touch focuser allows very precise focusing at this telescopes, but it will not provide more back-focus than the standard helical-focuser.Technical data:• Length: 48mm to 65mm• Travel: 17mm• Diameter: 57mm• Weight: 350gDelivered by order:• 1.25" Starlight-Instruments Feather-Touch focuser

Five extension tubes from 30 to 5mm length with thread connection M48x0,75mm in a set. For adjusting different distances of the camera to the focal plane of the telescope or the corrector/field flattener. There is an M48.0,75 internal and external thread in each individual tube. The M48x0.75 thread is also called large T2 photo thread or 2.0 inch filter thread. Camera specific bayonet adapters or color and nebula filters can be used. Included are 5 different tubes with the steps 30, 20, 15, 10 and 5 mm. The larger free inner diameter of 45.0 mm effectively prevents undesired vignetting of the camera sensor. The outer diameter of the sleeves is exactly 50.65 mm and can therefore be mounted directly in any 2 inch diameter eyepiece adapter. FEATURES Extension sleeves M48x0,75 in set Five extension sleeves: 30, 20, 15, 10, 5 mm Use with correctors and field flatteners Distance adjustment from camera to focal plane Suitable for camera-specific bayonet adapters Also suitable for 2.0 inch colour and nebular filters Internal and external thread M48x0.75 mm (large T2 thread) Large inner diameter of 45.0 mm Outer diameter is 50.65 mm (2 inches) Black matt anodized aluminium Total weight 85 grams SCOPE OF DELIVERY Extension sleeves M48x0.75 (5 pieces)

30 prepared slides based on the theme "Animals".CONTENTParamecium W.M. Paramecium Conjugation, W.M. Paramecium in Fission, W.M. Euglena W.M. Hydra C.S. Hydra, Spermary, C.S. Hydra L.S.Hydra With Bud, W.M. Schistosoma Male, W.M. Schistosoma Female, W.M. Ascaris Egg, C.S. Schistosoma Miracidia, W.M. Schistosoma Ceraroae, W.M. Schistosoma Adults in Copula, W.M. Bladder Worm, W.M. Tapeworm, Mature Proglottid, W.M. Ascaris Female and Male, C.S. Mitosis Horse Ascaris Eggs, Sec. Earthworm C.S. Honey Bee Mouth Parts, W.M. Mosquite Mouth Parts, W.M. Culex Common House Mosquito, Larva, W.M. House Fly Mouth Parts, W.M. Butterfly Mouth Parts, W.M. Honey Bee Hind Leg, W.M. Ant W.M. Clam Gill, C.S. Frog Egg, C.S. Frog Liver, Sec. Blood, Pigeon, smearSCOPE OF DELIVERY30 prepared slidesplastic case