Maxwell Hi-Lux Focusing Screens: A physicist’s brilliant invention!
They’ll turn your vintage film camera into a bright, fast-focusing classic
By Jason Schneider
William (Bill) Maxwell of Atlanta Georgia is a jack of all trades and master of most of them. After studying theoretical and applied physics for nearly eight years (at both undergraduate and graduate levels) he walked away from academia and returned to his first loves, photography and optics. He worked successfully as a commercial photographer for a while, but then his passion for optics kicked in big time, and in 1974 he started a business, Scientific Camera, Inc., designing and building custom optical instruments for the scientific, industrial, law enforcement, and technology markets.
Enter the Maxwell HI-LUX screen!
By the 1980s, 35mm SLRs, medium-format SLRs, and twin-lens reflexes (TLRs) were dominating the market, and the quest for better focusing screens was on in full swing. A few innovative companies developed custom screens that provided brighter viewing, but none of them were any easier to focus than the screens that originally came with the cameras. That’s what inspired Bill Maxwell to develop an entirely new kind of focusing screen based on scientific principles that was not only brighter, but also much easier to focus.

Maxwell HI-LUX Micro/ Split RF (Diagonal) screen for Contax 645
It took Bill more than a year of experimentation to develop his proprietary HI-LUX Process, but the result was transformational. What makes Maxwell HI-LUX screens different is that they provide the right combination of (1) brightness, (2) optical contrast, and (3) optical clarity (the ability to see fine detail). As a result, HI-LUX screens exhibit a crucial optical property commonly known as “Pop” or “Snap,” the ability to snap into focus decisively. Technically this means that there’s a sudden spike in the optical contrast at the point the image comes into focus. Indeed, this is the defining property of all Maxwell HI-LUX screens although they’re also noticeably brighter than the original manufacturers’ (OEM) screens supplied with the camera. HI-LUX screens are sold by Maxwell Precision Optics Inc. (maxwellprecisionoptics@yahoo.com; 1+404-317-6825)

Maxwell HI-LUX Micro/Split RF screeen with Rule of Thirds lines mounted for Pentax 67II
The backstory and future developments.
Articles on Maxwell HI-LUX screens were published in major photography magazines, including Popular Photography and Modern Photography during the 1980s and 1990s with very favorable reviews. As a result, Bill Maxwell was able to supply screens with these optical properties for a wide variety of cameras of all formats, especially medium format cameras. After the turn of the millennium and the introduction of DSLRs and professional grade large format digital cameras, Maxwell continued to supply custom tailored HI-LUX screens for virtually any camera that relies on optical viewing and focusing.
In response to the current resurgence in classic (analog) photography and shooting with vintage cameras. Maxwell Precision Optics Inc. is continuing to turn out HI-LUX screens for a wide variety of cameras from all time periods. And because Bill Maxwell is now collaborating with a new, better-than-ever, U.S.-based raw materials supplier, he’s now turning out some of the best HI-LUX screens he’s ever made, including a new HI-LUX Ultra Brilliant series. All these new screens are available with larger diameter, more sensitive split image rangefinders, microprisms, and a variety of linear composition aids. Also available: a classic all-matte Ultra Brilliant screen. Bill Maxwell is currently developing am exciting new line of HI-LUX Ultra Brilliant screens for Large Format cameras.

Maxwell HI-LUX Ultra Brilliant Matte screen for Mamiya RZ 67

Maxwell Hi-LUX Micro/ Split RF screen with Rule of Thirds lines for Hasselblad.
Reviews of Maxwell Hi-LUX screens: What do users say?
Maxwell Hi-Lux (including Brilliant Matte) focusing screens are highly regarded for significantly increasing screen brightness, contrast, and clarity in medium-format cameras such as Pentax 67, Rolleiflex, and Mamiya RZ. Users report they are much brighter than stock screens, making low-light focusing much easier.
Key Takeaways:
Brightness & Clarity: Users describe them as "the difference between night and day" compared to stock screens, noting that they eliminate “grainy/darker images.”
Focusing Performance: They improve focusing accuracy, particularly with wide-aperture lenses (f/2.4 to f/4) due to superior contrast, sharpness, and snap.
Installation: Generally easy, but some models (e.g., Pentax 67) may require professional installation.
Cost: Considered expensive (ranging from $450-$550 in some reports), but often described as a necessary upgrade for critical, professional work, and well worth it.
Overall, Maxwell screens are considered a premium, high-performance, and "worth it" investment by many film photographers, especially professional and advanced shooters seeking to upgrade their overall viewing and focusing experience.

Maxwell HI-Lux Micro/ Split RF screen for interchangeable-screem Rollei TLRs.
Types of Maxwell HI-LUX screens available:
(1) HI-LUX Micro/ Split RF - large 6mm diameter split image rangefinder surrounded by large 13mm diameter microprism collar surrounded by HI-LUX Ultra Brilliant matte field
(2) HI-LUX Microprism - large 13mm diameter central microprism spot surrounded by HI-LUX Ultra Brilliant matte field
(3) HI-LUX Ultra Brilliant Matte - entire screen is HI-LUX Ultra Brilliant matte field with no focusing aids,
These three screen types (with composition line options) are available for all cameras that are supported.
Current price ranges of Maxwell HI-LUX screens:
All Rollei/Rolleiflex medium format cameras (TLR and SLR) ever made are $450 (composition line options at additional cost)
Pentax 6x7, 67 are $450. Pentax 67II screens $550 (if you supply frame) or $775 (complete with frame) - line options at additional cost.
Mamiya RZ67 (series) screens $550 (you supply frame) or $750-$775 (complete with frame, depending on type of frame) - line options at additional cost.
Hasselblad (“V” system) screens are $600 - $650 (mounted in like new refurbished Hasselblad metal frames).
Contax 645 - HI-LUX Enhancement $450 (to customer supplied screens). Complete screens at additional cost. Specialty screens with large focus aids also available at extra cost.
Most unmounted screens are $450 apiece (line options available at additional cost).
Note: These screens are also available for many, many more types of classic and recent medium format cameras.
The bottom line: Some experts say that Maxwell HI-Lux screens are the best focusing screens ever made. Based on our experience we wouldn’t go out of our way to disagree with them.
They’ll turn your vintage film camera into a bright, fast-focusing classic
By Jason Schneider
William (Bill) Maxwell of Atlanta Georgia is a jack of all trades and master of most of them. After studying theoretical and applied physics for nearly eight years (at both undergraduate and graduate levels) he walked away from academia and returned to his first loves, photography and optics. He worked successfully as a commercial photographer for a while, but then his passion for optics kicked in big time, and in 1974 he started a business, Scientific Camera, Inc., designing and building custom optical instruments for the scientific, industrial, law enforcement, and technology markets.
Enter the Maxwell HI-LUX screen!
By the 1980s, 35mm SLRs, medium-format SLRs, and twin-lens reflexes (TLRs) were dominating the market, and the quest for better focusing screens was on in full swing. A few innovative companies developed custom screens that provided brighter viewing, but none of them were any easier to focus than the screens that originally came with the cameras. That’s what inspired Bill Maxwell to develop an entirely new kind of focusing screen based on scientific principles that was not only brighter, but also much easier to focus.

Maxwell HI-LUX Micro/ Split RF (Diagonal) screen for Contax 645
It took Bill more than a year of experimentation to develop his proprietary HI-LUX Process, but the result was transformational. What makes Maxwell HI-LUX screens different is that they provide the right combination of (1) brightness, (2) optical contrast, and (3) optical clarity (the ability to see fine detail). As a result, HI-LUX screens exhibit a crucial optical property commonly known as “Pop” or “Snap,” the ability to snap into focus decisively. Technically this means that there’s a sudden spike in the optical contrast at the point the image comes into focus. Indeed, this is the defining property of all Maxwell HI-LUX screens although they’re also noticeably brighter than the original manufacturers’ (OEM) screens supplied with the camera. HI-LUX screens are sold by Maxwell Precision Optics Inc. (maxwellprecisionoptics@yahoo.com; 1+404-317-6825)

Maxwell HI-LUX Micro/Split RF screeen with Rule of Thirds lines mounted for Pentax 67II
The backstory and future developments.
Articles on Maxwell HI-LUX screens were published in major photography magazines, including Popular Photography and Modern Photography during the 1980s and 1990s with very favorable reviews. As a result, Bill Maxwell was able to supply screens with these optical properties for a wide variety of cameras of all formats, especially medium format cameras. After the turn of the millennium and the introduction of DSLRs and professional grade large format digital cameras, Maxwell continued to supply custom tailored HI-LUX screens for virtually any camera that relies on optical viewing and focusing.
In response to the current resurgence in classic (analog) photography and shooting with vintage cameras. Maxwell Precision Optics Inc. is continuing to turn out HI-LUX screens for a wide variety of cameras from all time periods. And because Bill Maxwell is now collaborating with a new, better-than-ever, U.S.-based raw materials supplier, he’s now turning out some of the best HI-LUX screens he’s ever made, including a new HI-LUX Ultra Brilliant series. All these new screens are available with larger diameter, more sensitive split image rangefinders, microprisms, and a variety of linear composition aids. Also available: a classic all-matte Ultra Brilliant screen. Bill Maxwell is currently developing am exciting new line of HI-LUX Ultra Brilliant screens for Large Format cameras.

Maxwell HI-LUX Ultra Brilliant Matte screen for Mamiya RZ 67

Maxwell Hi-LUX Micro/ Split RF screen with Rule of Thirds lines for Hasselblad.
Reviews of Maxwell Hi-LUX screens: What do users say?
Maxwell Hi-Lux (including Brilliant Matte) focusing screens are highly regarded for significantly increasing screen brightness, contrast, and clarity in medium-format cameras such as Pentax 67, Rolleiflex, and Mamiya RZ. Users report they are much brighter than stock screens, making low-light focusing much easier.
Key Takeaways:
Brightness & Clarity: Users describe them as "the difference between night and day" compared to stock screens, noting that they eliminate “grainy/darker images.”
Focusing Performance: They improve focusing accuracy, particularly with wide-aperture lenses (f/2.4 to f/4) due to superior contrast, sharpness, and snap.
Installation: Generally easy, but some models (e.g., Pentax 67) may require professional installation.
Cost: Considered expensive (ranging from $450-$550 in some reports), but often described as a necessary upgrade for critical, professional work, and well worth it.
Overall, Maxwell screens are considered a premium, high-performance, and "worth it" investment by many film photographers, especially professional and advanced shooters seeking to upgrade their overall viewing and focusing experience.

Maxwell HI-Lux Micro/ Split RF screen for interchangeable-screem Rollei TLRs.
Types of Maxwell HI-LUX screens available:
(1) HI-LUX Micro/ Split RF - large 6mm diameter split image rangefinder surrounded by large 13mm diameter microprism collar surrounded by HI-LUX Ultra Brilliant matte field
(2) HI-LUX Microprism - large 13mm diameter central microprism spot surrounded by HI-LUX Ultra Brilliant matte field
(3) HI-LUX Ultra Brilliant Matte - entire screen is HI-LUX Ultra Brilliant matte field with no focusing aids,
These three screen types (with composition line options) are available for all cameras that are supported.
Current price ranges of Maxwell HI-LUX screens:
All Rollei/Rolleiflex medium format cameras (TLR and SLR) ever made are $450 (composition line options at additional cost)
Pentax 6x7, 67 are $450. Pentax 67II screens $550 (if you supply frame) or $775 (complete with frame) - line options at additional cost.
Mamiya RZ67 (series) screens $550 (you supply frame) or $750-$775 (complete with frame, depending on type of frame) - line options at additional cost.
Hasselblad (“V” system) screens are $600 - $650 (mounted in like new refurbished Hasselblad metal frames).
Contax 645 - HI-LUX Enhancement $450 (to customer supplied screens). Complete screens at additional cost. Specialty screens with large focus aids also available at extra cost.
Most unmounted screens are $450 apiece (line options available at additional cost).
Note: These screens are also available for many, many more types of classic and recent medium format cameras.
The bottom line: Some experts say that Maxwell HI-Lux screens are the best focusing screens ever made. Based on our experience we wouldn’t go out of our way to disagree with them.
Last edited:
