Carl Zeiss 1¼" Abbe Barlow lens 2x

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Carl Zeiss 1¼" Abbe Barlow lens 2x

# 1603321

€ 425.00 Price excl. German VAT tax (19%): € 357.14
  • Available again for a limited time: Carl Zeiss 1¼" Abbe Barlow lens with T-2 thread made in Germany by Carl Zeiss in Jena – with 1¼" / T-2 ClickLock eyepiece clamp by Baader Planetarium
  • visual Barlow lens and photographic eyepiece projection in one system
  • Direct T-2 Adaption possible - extends magnification up to 3x - without loss of quality
  • The image quality is only exceeded by our 4x-8x flat field FFC-Converter, in case the projection factor exceeds 4x

Product Questions

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What is the exact focal lenght of this barlow?
2
Question by: Bruno Yporti on Feb 17, 2017 3:16:00 AM | 1 Answer(s)
Do you know what the lens element to imaging plane distances are for 2x, 3x and 4x operation? Also the text says no loss of quality at 3x then elsewhere it says no loss of quality up to 4x. Is 4x okay or is that a misprint?

Thanks
Martin
-2
Question by: Martin Lewis on Jan 25, 2017 10:21:28 PM | 1 Answer(s)
Description

Details

Direct T-2 Adaption possible - extends magnification up to 3x - without quality loss

The Carl Zeiss Abbe Barlow lens consists of two parts. The front barlow section ends with a photographic T-2 thread suitable to directly connect onto standard DSLR T-rings. , at the separation level a T-2 photo thread - mounted with our Baader ClickLock eyepiece clamp with the known rotary clamping system. A direct T-2 adaptation is possible.

An enlargement of the imaging scale up to three times is possible without loss of quality. On the first T-2 thread you can connect normal T-rings, so you have a 2x Barlow lens - with 1¼ " barrel - in front of every camera, webcam or DSLR camera housing. If you add T-2 extensions the magnification can be extended by up to 3x. We recommend using our T-2 Varilock clamps for stepless adjusting of the optical length: Varilock 20-29mm (# 2956929) or Varilock 29-46mm (# 2956946)

Spectral transmission curve of the Zeiss Abbe Barlow

This (german) document attests to the exceptional performance of the multi-layer anti-reflection coating applied onto the new 2016 Carl Zeiss Abbe-Barlow-Lens made in Jena / Germany. Carl Zeiss has chosen to develop and apply the very best coating ever made available to the most discriminating visual observer. The coatings feature a 0.2% loss over the exact spectral region where the night-adapted human eye is most sensitive. This extremely high efficiency also translates to near-zero coating scatter for the highest contrast ever seen. No lens-system has ever been coated to more stringent requirements for visual observation and for VIS-photography as well.

Specifications

Additional Information

Manufacturer Zeiss
SKU (#) 1603321
Weight (kg) 0.103
Outer Connection (lens sided) Barrel, 1¼"
Inner Connection (eyepiece/-camera-sided) Clamp, 1¼"
Outer Connection (eyepiece/-camera-sided) Thread, T-2 (M42 x 0,75)
Clamping System ClickLock
Magnification (x) 2x - 3x
Barrel Size (in) 1¼"
Optical Design Barlow
Speciality Barlow lens
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