BRESSER Extension Tube 37,5 mm for 2.5" HEXAFOC

Product Highlights

BRESSER Extension Tube 37,5 mm

  • Increases the distance to the eyepiece/camera
  • Suitable for 2.5 inch HEXAFOC
  • Optical length: 37,5 mm
  • Internal and external thread: M68x0,75 mm
  • Inside black matt coated
  • Material: aluminium, black anodized

£19.90*

Available

Product number: 4940110
GTIN/EAN: 4007922060859
Product information "BRESSER Extension Tube 37,5 mm for 2.5" HEXAFOC"
Are you having trouble focusing your eyepiece or camera?
Then use this 37.5 mm extension sleeve to increase the distance between the 2.5 inch HEXAFOC eyepiece extension and the eyepiece or camera. The extension sleeve has an M68x0.75 mm internal and external thread and can therefore be screwed directly onto the HEXAFOC draw tube.


SPECIFICATIONS

  • Increases the distance to the eyepiece/camera
  • Suitable for 2.5 inch HEXAFOC
  • Optical length: 37,5 mm
  • Internal and external thread: M68x0,75 mm
  • Inside black matt coated
  • Material: aluminium, black anodized

SCOPE OF DELIVERY
  • Extension sleeve 37,5 mm (1 piece)
Colour: black
Material: Aluminium

0 of 0 reviews

Leave a review!

Share your experiences with other customers.


Similar products

BRESSER Extension Tube 37,5 mm for 2.5" HEXAFOC
Are you having trouble focusing your eyepiece or camera? Then use this 37.5 mm extension sleeve to increase the distance between the 2.5 inch HEXAFOC eyepiece extension and the eyepiece or camera. The extension sleeve has an M68x0.75 mm internal and external thread and can therefore be screwed directly onto the HEXAFOC draw tube. SPECIFICATIONSIncreases the distance to the eyepiece/cameraSuitable for 2.5 inch HEXAFOCOptical length: 37,5 mmInternal and external thread: M68x0,75 mmInside black matt coatedMaterial: aluminium, black anodizedSCOPE OF DELIVERYExtension sleeve 37,5 mm (1 piece)

£19.90*
BRESSER Extension Tube 25 mm for 2.5" HEXAFOC
Are you having trouble focusing your eyepiece or camera? Then use this BRESSER 25 mm extension sleeve to increase the distance between the 2.5 inch HEXAFOC eyepiece extension and the eyepiece or camera. The extension sleeve has an M68x0.75 mm internal and external thread and can therefore be screwed directly onto the HEXAFOC draw tube.SPECIFICATIONSIncreases the distance to the eyepiece/camera Suitable for 2.5 inch HEXAFOC Optical length: 25 mm Internal and external thread: M68x0,75 mmInside black matt coated Material: aluminium, black anodized SCOPE OF DELIVERYExtension sleeve 25 mm (1 piece)

£17.00*
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 37.5 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: 37.5 mm Internal and external thread: M54x0,75 mmInside black, matt coated Material: aluminium, black anodized SCOPE OF DELIVERYExtension sleeve 37.5 mm (1 piece)

£19.00*
Vixen Dual-Speed-Focuser
​The 1: 7 reduction enables very fine focusing of targets.An indispensable accessory, especially in astrophotography.The reduction can be retrofitted on the following telescopes:A80M, A105M, NA140SSf, ED81S, ED103S, ED115S, AX103S, VC200L, VMC200L and R200SSCannot be used on old devices from the 90s with plastic focusing knobs - in these cases, it is also necessary to swap the focus spindle (please contact us for details).PROPERTIESAllows very fine focusingIndispensable in astrophotographyCan be retrofitted to many Vixen telescopesReduced to 7:1Weight: 170 gWHAT'S INCLUDEDDual Speed KnobAssembly tool

£192.00*
1,25‘‘ Feather-Touch Focuser
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

£467.00*
EXPLORE SCIENTIFIC Adaptor for 2" FT-Focuser on tubes with 2.5" HEX
Enables you to connect the 2" Feathertouch Focuser FTF2020BCR to the EXPLORE SCIENTIFIC and BRESSER telescopes that are equipped with a 2,5" Hexafoc or 2,5" Hexafoc DeLuxe. The focuser is not included - see 0625714 Feathertouch FTF2020BCR. FEATURES Adaptor for retrofitting a 2" Feathertouch Focuser FTF2020BCR Suitable for EXPLORE SCIENTIFIC and BRESSER telescopes with a 2,5" Hexafoc or 2,5" Hexafoc DeLuxe Focuser not included SCOPE OF DELIVERY 1x Adaptor for 2" FT-Focuser on tubes with 2.5" HEX

£65.00*
Adapter Feather-Touch to LUNT LS60/80/THa/MT + LS100MT + ES Dobson
Adapter for all LUNT Solar Systems LS60 and LS80 telescopes, for LS100MT telescopes, and all 10", 12", and 16" EXPLORE SCIENTIFIC Ultra Light Dobson, to change the normal Crayford focuser to a Starlight Instruments 2" Feather-Touch focuser. FEATURES Adapter to 2" Feather-Touch focuser Suitable for LUNT Solar Systems LS60THa and LS80THa telescopes, and LS60MT, LS80MT, and LS100MT telescopes Suitable for all 10", 12", and 16" EXPLORE SCIENTIFIC Ultra Light Dobson SCOPE OF DELIVERYAdapter LS60/LS80, ES UL Dobson 10", 12" and 16" to 2" Feather-Touch focuser(Feather-Touch focuser not included!)

£61.00*
BRESSER Gear-Set 1:8 Messier Hexfoc
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

£99.00*
BRESSER Extension Tube 20 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)

£17.00*

Customers also bought

LUNT Grease for Pressure-Tuner at MT & THa solar telescopes
Spare part for Pressure-Tuner of MT and THa series H-alpha solar telescopes from LUNT SOLAR SYSTEMSFor example, if the O-rings have been changed on a Pressure-Tuner of a Lunt Solar Systems H-alpha solar telescope, the Pressure-Tuner can be re-greased with this grease. The grease can be applied to the piston with the O-rings and to the threads of the brass cylinder on the Pressure-Tuner. It keeps the Pressure-Tuner running smoothly and seals it.Please note:Do not use too much grease inside the brass cylinder. The grease must not get into the air passage at the bottom of the brass cylinder, otherwise the Etalon could be damaged in the worst case.FEATURESLithium grease with Teflon contentVery good sealing propertiesHigh adhesion and good corrosion protectionTemperature stable from -20 to +120° CelsiusConstant viscosity during temperature fluctuationsSCOPE OF DELIVERYSpare part: Grease for Pressure-Tuner of MT and THa H-alpha solar telescopes from Lunt Solar Systems

£2.00*
LUNT O-ring for Pressure-Tuner at LS50THa solar telescopes
​Spare part for Pressure-Tuner of LS50THa H-alpha solar telescopes from LUNT SOLAR SYSTEMSA rubber O-ring is installed into the Pressure-Tuner of Lunt Solar Systems LS50THa solar telescopes to seal the air-pressure tuning system. Over time, the rubber of this O-ring can age and become porous, whereby the air-pressure can then no longer be maintained. When this happens, the old O-ring can be replaced by this spare part. The replacement is simple and can be done by the user. Installation instructions can be found here under the tab "Manuals" as a PDF for download.After replacing the O-ring, the piston and cylinder of the Pressure-Tuner can be re-greased with grease available under part number 0558350.Please note that this spare part can only be used on the Lunt Solar Systems LS50THa H-alpha solar telescopes. If the problem occurs on the larger THa or MT series telescopes, the larger O-rings with part numbers 0558330 or 0558340 must be used there.FEATURESInner-diameter: 31mmOuter-diameter: 39mmCannot be used separately, only as a replacement part on the Pressure-Tuner of the LS50THa telescopes from Lunt Solar Systems.It does not matter what blocking filter is at the LS50THaSCOPE OF DELIVERYSpare part one O-ring for pressure tuner of LS50THa

£5.00*

Customers also viewed

BRESSER Extension Tube 25 mm for 2.5" HEXAFOC
Are you having trouble focusing your eyepiece or camera? Then use this BRESSER 25 mm extension sleeve to increase the distance between the 2.5 inch HEXAFOC eyepiece extension and the eyepiece or camera. The extension sleeve has an M68x0.75 mm internal and external thread and can therefore be screwed directly onto the HEXAFOC draw tube.SPECIFICATIONSIncreases the distance to the eyepiece/camera Suitable for 2.5 inch HEXAFOC Optical length: 25 mm Internal and external thread: M68x0,75 mmInside black matt coated Material: aluminium, black anodized SCOPE OF DELIVERYExtension sleeve 25 mm (1 piece)

£17.00*
EXPLORE SCIENTIFIC Adapter 2.5 HEX auf M48x0.75
This adaptor connects accessories with the large open diameter of the M48x0,75 thread to the 2,5" Hexafoc. This avoids the vignetting that is caused by adaptors with a smaller diameter - ideal for astrophotographical accessories like off-axis guiders.The adaptor is made from black anodized aluminium.

£55.00*