Description
Product Description
The INON S-MRS Magnet Ring S70 Set is a dedicated magnetic lens-control accessory set designed for the SIGMA 70mm F2.8 DG MACRO | Art lens. It adapts the lens for operation with INON’s S-MRS (Smart Magnetic Rotary System), allowing the lens’s focus ring to be controlled underwater through magnetic coupling when used with a compatible MRS extension ring and X-2 housing configuration.
The S-MRS system transfers rotational movement without a conventional mechanical gear connection between the housing and lens. This provides smooth, precise manual focus operation while helping reduce play and rattle for underwater macro photography.
Key Benefits
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Designed for SIGMA 70mm F2.8 DG MACRO | Art
Purpose-built to adapt the SIGMA 70mm macro lens for compatible INON S-MRS underwater configurations. -
Underwater Manual Focus Control
Allows the lens’s focus ring to be operated from outside a compatible underwater housing. -
Complete Lens-Specific Set
Combines the S-MRS Magnet Ring with the dedicated adapter required for the SIGMA 70mm macro lens. -
Magnetic Rotary Operation
Uses magnetic attraction to transfer rotational movement between the lens-mounted ring and compatible S-MRS control system. -
Smooth & Precise Control
The S-MRS design provides responsive operation while minimizing unwanted play and rattle. -
Ideal for Macro Photography
Manual focus control is particularly useful for precise underwater macro and close-up composition.
Who It's For
- Underwater macro photographers
- SIGMA 70mm F2.8 DG MACRO | Art users
- Owners of compatible INON X-2 underwater housings
- Photographers using INON’s S-MRS lens-control system
- Users requiring manual focus control underwater
What's Included
- INON S-MRS Magnet Ring
- Magnet Ring Adapter S70
Key Specifications
- Product Type: Magnetic Lens Control Ring Set
- Compatible Lens: SIGMA 70mm F2.8 DG MACRO | Art
- Controlled Function: Manual focus / focus ring operation
- System: INON S-MRS (Smart Magnetic Rotary System)
- Compatibility: Compatible INON X-2 housing, MRS extension ring, and port configurations specified for the SIGMA 70mm F2.8 DG MACRO | Art
FAQ
What does the S-MRS Magnet Ring S70 Set do?
It adapts the SIGMA 70mm F2.8 DG MACRO | Art for magnetic operation of its focus ring through a compatible INON underwater housing system.
Does it provide manual focus control underwater?
Yes. The S70 Set is designed to allow the compatible lens’s focus ring to be manually operated underwater through the S-MRS magnetic system.
What comes with the S70 Set?
The set includes the S-MRS Magnet Ring and the lens-specific Magnet Ring Adapter S70.
Does this control zoom?
No. The SIGMA 70mm F2.8 DG MACRO | Art is a fixed-focal-length macro lens. This accessory is for focus control, not zoom.
Does it include an MRS extension ring or lens port?
No. This listing includes the S-MRS Magnet Ring S70 Set only. The compatible extension ring, port, housing, camera, and lens are sold separately.
Can I use the S70 Set with other lenses?
No. The S70 Set is specifically designed for the SIGMA 70mm F2.8 DG MACRO | Art. Other lenses require their appropriate S-MRS Magnet Ring or adapter.