M42 To RMS Microscope Objective Adapter

€24.95
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M42 To RMS Microscope Objective Adapter

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M42 To RMS Microscope Objective Adapter

€24.95

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€34.95
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Product details

M42 To RMS Microscope Objective Adapter

Precision-machined aluminium alloy adapter ring for connecting M42-threaded microscope objective lenses to RMS (Royal Microscopical Society) standard mounts. Outer diameter: approx. 42 mm; inner RMS thread: 0.796"–36 TPI (20.2 mm diameter). Total thickness: approx. 5.5 mm. Weight: ~18 g. Designed for rigid mechanical coupling — no optical elements, no electronic contacts, no autofocus or aperture control. Enables use of standard biological microscope objectives (e.g., 4×, 10×, 20×) on DSLR/mirrorless systems via additional SLR lens mount adapters (not included). Requires manual focus only — objective lenses are fixed-focus optics with finite working distances: ~10–15 mm for 4×, ~1–2 mm for 10× and 20×. Maximum parfocal distance is 160 mm; total optical path (objective + adapter + SLR adapter + camera flange distance) must remain under this limit for proper image formation. Ideal for macro and micro-photography setups where high-resolution, flat-field corrected objectives are preferred over standard macro lenses. Best used with a precision macro rail or focusing stage for fine focus control. Slight vignetting may occur at edges due to native objective design — expected behaviour, not defect.
  • Fruugo ID: 559736871-1128993589
  • EAN: 937677323562
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Safety Warnings: Warning: You need to check the safety performance of the device regularly to ensure that the device is in good condition.
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  • Yang Yue
  • Lixian Penghui Trading Co., Ltd.
  • Group 5
  • Renhe Village
  • Changde City
  • CN
  • 415500
  • [email protected]
  • 1(319)277-0024

Responsible Person in the EU
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  • eVatmaster Consulting GmbH
  • eVatmaster Consulting GmbH
  • RaiffeisenstraBe 2 B11
  • Rodgau
  • DE
  • 63110
  • [email protected]
  • 49 61062699873
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  • STANDARD: €6.15 - Delivery between Fri 20 November 2026–Tue 01 December 2026

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