Rodenstock Rodagon 80mm f/4 enlarging lens

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.

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🔍 Key Specifications:

📐 Optical Design:

• Focal Length: 80mm

• Maximum Aperture: f/4 (bright, easy focusing)

• Minimum Aperture: f/22 (typical)

• Optical Construction: 6 elements / 4 groups – symmetrical Plasmat-type design

• Coverage: Optimized for 6×6cm (56mm square) format – covers with room to spare

• Aperture Control: Preset iris with click stops – smooth, precise operation

🔧 Mount & Physical:

• Mount Thread: 39mm Leica (M39) enlarger thread – universal compatibility

• Filter Thread: 40.5mm (typical – verify)

• Iris Blades: 12 blades (typically) – produces smooth, circular out-of-focus highlights

• Finish: Professional black anodized barrel with luminous aperture markings

• Dimensions: Standard enlarging lens size, fits most enlarger boards

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⚙️ Why This Lens is Exceptional:

🎯 Rodagon Series – The Darkroom Standard:
Rodenstock’s Rodagon series is universally recognized as the benchmark for professional enlarging lenses:

• Diffraction-limited performance at working apertures (f/5.6–f/11)

• Superb correction of chromatic aberration, coma, and distortion

• High contrast across the entire image field

• Color-neutral – ideal for color and black & white printing

📏 80mm Focal Length – Perfect for 6×6cm:

• Optimized for 6×6cm square format – covers the full negative with excellent edge-to-edge sharpness

• Also ideal for 6×4.5cm – generous coverage allows for cropping and movements

• Usable for 35mm – provides significant enlargement capability

• The “standard” enlarging lens for Hasselblad, Rollei, and other medium format systems

💎 6-Element Symmetrical Design:

• Symmetrical Plasmat configuration minimizes distortion and field curvature

• Equal performance at 1:1 (same-size reproduction) – excellent for copy work

• Exceptional sharpness from center to corners at working apertures

🔦 Bright f/4 Maximum Aperture:

• Easier focusing – bright image on easel, even with dense negatives

• Composing with depth of field preview – visualize final print at taking aperture

• Useful for low-light darkroom conditions

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🛠️ Applications & Uses:

🖼️ Fine Art Darkroom Printing:

• 6×6cm medium format printing – maximize sharpness and tonality from Hasselblad, Rollei, Mamiya

• 6×4.5cm format – exceptional performance with Pentax 645, Mamiya 645, Bronica

• Black & white printing – fiber-based papers, lith printing, alternative processes

• Color printing – neutral rendition, accurate filtration response

🔄 Copy & Reproduction Work:

• 1:1 copy lens – excellent for digitizing medium format transparencies

• Slide duplicator – sharp, color-accurate duplicates

• Document reproduction – flat-field performance ideal for copy stands

🔬 Alternative / Experimental Photography:

• Medium format camera lens – mount on bellows for macro photography

• Projection lens – high-quality image projection for installations

• DIY enlarger projects – build custom enlarger for medium format

📷 Digital Scanning:

• Film scanning lens – excellent for high-resolution drum scanner replacements

• Camera scanning – use with mirrorless camera for digitizing 6×6cm negatives