The Calhoun Rapid Perspective lens is an antique brass barrel lens designed for large format photography, specifically for 14×17 inch formats. It features a 22-inch (560mm) focal length and f/8 aperture, indicating its light-gathering capability and depth of field characteristics.
This focal length provides a field of view that is slightly wider than normal for the 14×17 format, making it suitable for applications requiring a broad perspective. This lens is roughly equivant to about 43mm on a 35mm in terms of field of view and the effective aperture would be in the sub f/1 range.
This lens was likely produced in the early 1900s, as suggested by listings of similar models.
I have mounted this lens on my 14×17 camera and confirmed coverage.
The term “Rapid Perspective” suggests it was engineered to provide a wide field of view with minimized distortion, making it suitable for architectural or landscape photography where accurate perspective rendering is crucial. The brass construction is typical of lenses from that era, reflecting both the manufacturing practices and aesthetic preferences of the time.
If you’re passionate about analog photography but also value a simpler, more sustainable way to work, then the Darkroom Diary Premium Membership is exactly what you’ve been looking for. As a member, you’ll gain access to my master-level analog workflows—now updated to reflect a more minimalist hybrid approach that blends the soul of analog with the flexibility of digital tools. From large format paper and film negatives to scanning, editing, and archival inkjet printing, I’ll walk you through the entire process in an approachable, thoughtful way. This membership isn’t just about high-quality, proven techniques—it’s an invitation to join a community of like-minded artists who appreciate analog photography and want to grow without the burden of maintaining a full darkroom.
As a Premium Member, you’ll get:
- Exclusive articles and field notes exploring creative process, gear, and artistic philosophy
- Step-by-step hybrid workflow guides for scanning, editing, and printing
- Live video sessions covering technical, creative, and historical topics
- Direct access to me for personalized feedback and Q&A
All of this is just $10/month, making it an incredible value for any analog photographer ready to deepen their craft in a new way.
I’d love to welcome you to the community—join now and get immediate access.
