Product Description
Rodenstock Rodagon Enlarging Lens – 80mm f/4 – Professional Medium Format Enlarging Lens
A professional-grade 80mm f/4 enlarging lens from Rodenstock’s legendary Rodagon series. Widely regarded as the reference standard for 6×6cm medium format enlarging, this 6-element, 4-group symmetrical design delivers exceptional sharpness, contrast, and color fidelity from center to edge. An essential tool for fine art darkroom printing and analog photography enthusiasts.
🔍 Key Specifications:
📐 Optical Design:
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Focal Length: 80mm
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Maximum Aperture: f/4 (bright, easy focusing)
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Minimum Aperture: f/22 (typical)
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Optical Construction: 6 elements / 4 groups – symmetrical Plasmat-type design
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Coverage: Optimized for 6×6cm (56mm square) format – covers with room to spare
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Aperture Control: Preset iris with click stops – smooth, precise operation
🔧 Mount & Physical:
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Mount Thread: 39mm Leica (M39) enlarger thread – universal compatibility
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Filter Thread: 40.5mm (typical – verify)
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Iris Blades: 12 blades (typically) – produces smooth, circular out-of-focus highlights
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Finish: Professional black anodized barrel with luminous aperture markings
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Dimensions: Standard enlarging lens size, fits most enlarger boards
⚙️ Why This Lens is Exceptional:
🎯 Rodagon Series – The Darkroom Standard:
Rodenstock’s Rodagon series is universally recognized as the benchmark for professional enlarging lenses:
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Diffraction-limited performance at working apertures (f/5.6–f/11)
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Superb correction of chromatic aberration, coma, and distortion
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High contrast across the entire image field
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Color-neutral – ideal for color and black & white printing
📏 80mm Focal Length – Perfect for 6×6cm:
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Optimized for 6×6cm square format – covers the full negative with excellent edge-to-edge sharpness
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Also ideal for 6×4.5cm – generous coverage allows for cropping and movements
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Usable for 35mm – provides significant enlargement capability
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The “standard” enlarging lens for Hasselblad, Rollei, and other medium format systems
💎 6-Element Symmetrical Design:
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Symmetrical Plasmat configuration minimizes distortion and field curvature
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Equal performance at 1:1 (same-size reproduction) – excellent for copy work
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Exceptional sharpness from center to corners at working apertures
🔦 Bright f/4 Maximum Aperture:
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Easier focusing – bright image on easel, even with dense negatives
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Composing with depth of field preview – visualize final print at taking aperture
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Useful for low-light darkroom conditions
🛠️ Applications & Uses:
🖼️ Fine Art Darkroom Printing:
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6×6cm medium format printing – maximize sharpness and tonality from Hasselblad, Rollei, Mamiya
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6×4.5cm format – exceptional performance with Pentax 645, Mamiya 645, Bronica
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Black & white printing – fiber-based papers, lith printing, alternative processes
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Color printing – neutral rendition, accurate filtration response
🔄 Copy & Reproduction Work:
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1:1 copy lens – excellent for digitizing medium format transparencies
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Slide duplicator – sharp, color-accurate duplicates
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Document reproduction – flat-field performance ideal for copy stands
🔬 Alternative / Experimental Photography:
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Medium format camera lens – mount on bellows for macro photography
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Projection lens – high-quality image projection for installations
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DIY enlarger projects – build custom enlarger for medium format
📷 Digital Scanning:
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Film scanning lens – excellent for high-resolution drum scanner replacements
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Camera scanning – use with mirrorless camera for digitizing 6×6cm negatives




