The Secret Behind Nikon’s Second Aperture Scale (It’s Genius!)
Why do Nikon AI lenses have TWO aperture scales?
In this video, we explore the hidden purpose behind the second set of aperture numbers found on Nikon AI and AI-S lenses—and how it ties into Nikon’s ADR (Aperture Direct Readout) system.
You’ll learn:
📷 What ADR is and how it works
🔎 Why Nikon added the second scale
📸 How different Nikon film cameras like the F2AS, F3, F4, and F5 display aperture info
🛠️ How some lenses were AI-converted (and what to look for)
👁️ Why the F6 dropped ADR in favor of digital readouts
Whether you're a Nikon enthusiast, film shooter, or vintage gear collector, this is a deep dive into one of Nikon’s most clever mechanical innovations.
👍 Like what you see?
📩 Leave a comment if you’ve noticed the second scale—or if you’re using AI lenses today!
🔔 Subscribe for more Nikon history and 35mm gear breakdowns.
Photographic equipment that I often use:
Nikon Z9: https://tinyurl.com/phototoolkitnikonz9
Nikon Z8: https://tinyurl.com/phototoolkitnikonz8
Nikon D850: https://tinyurl.com/phototoolkitnikonD850
Nikon F6: https://tinyurl.com/phototoolkitnikonF6
Nikon 14-24mm F2.8: https://tinyurl.com/phototoolkitnikon14-24
Nikon 24-70mm F2.8: https://tinyurl.com/phototoolkitnikon24-70
Nikon 70-200mm F2.8: https://tinyurl.com/phototoolkitnikon70-200
Nikon 105mm F2.8 macro: https://tinyurl.com/phototoolkitnikon105macro
Nikon 300mm F4 PF: https://tinyurl.com/phototoolkitnikon300f4pf
Nikon 200-400 F4: https://tinyurl.com/phototoolkitnikon200-400f4
Thanks for all your support. As an Amazon Associate I earn from qualifying purchases.
If you are looking to learn about creative techniques, check out my playlist: https://youtube.com/playlist?list=PL61oAk83ovj9Tc_siiaWCOYYR77mjDtnZ&si=KEsdaaAkrIUxdE2Q
Check out my playlist of Photography challenges: https://youtube.com/playlist?list=PL61oAk83ovj_vyHss90B9ok39Et8f7r8a&si=VPqYv0TKdDWb-CSa
I use all different types of cameras from Nikon film to digital, Fujifilm GFX, Hasselblad Xpan, Polaroid, Mamyia TLRs and Instax Mini Evo. Check out my equipment playlist: https://youtube.com/playlist?list=PL61oAk83ovj-qAD2Fo2rhHkVuJtXW-UL7&si=xzAlSCBl4ruW2Y2w
Видео The Secret Behind Nikon’s Second Aperture Scale (It’s Genius!) канала The Photography Toolkit: Dave Caleb
In this video, we explore the hidden purpose behind the second set of aperture numbers found on Nikon AI and AI-S lenses—and how it ties into Nikon’s ADR (Aperture Direct Readout) system.
You’ll learn:
📷 What ADR is and how it works
🔎 Why Nikon added the second scale
📸 How different Nikon film cameras like the F2AS, F3, F4, and F5 display aperture info
🛠️ How some lenses were AI-converted (and what to look for)
👁️ Why the F6 dropped ADR in favor of digital readouts
Whether you're a Nikon enthusiast, film shooter, or vintage gear collector, this is a deep dive into one of Nikon’s most clever mechanical innovations.
👍 Like what you see?
📩 Leave a comment if you’ve noticed the second scale—or if you’re using AI lenses today!
🔔 Subscribe for more Nikon history and 35mm gear breakdowns.
Photographic equipment that I often use:
Nikon Z9: https://tinyurl.com/phototoolkitnikonz9
Nikon Z8: https://tinyurl.com/phototoolkitnikonz8
Nikon D850: https://tinyurl.com/phototoolkitnikonD850
Nikon F6: https://tinyurl.com/phototoolkitnikonF6
Nikon 14-24mm F2.8: https://tinyurl.com/phototoolkitnikon14-24
Nikon 24-70mm F2.8: https://tinyurl.com/phototoolkitnikon24-70
Nikon 70-200mm F2.8: https://tinyurl.com/phototoolkitnikon70-200
Nikon 105mm F2.8 macro: https://tinyurl.com/phototoolkitnikon105macro
Nikon 300mm F4 PF: https://tinyurl.com/phototoolkitnikon300f4pf
Nikon 200-400 F4: https://tinyurl.com/phototoolkitnikon200-400f4
Thanks for all your support. As an Amazon Associate I earn from qualifying purchases.
If you are looking to learn about creative techniques, check out my playlist: https://youtube.com/playlist?list=PL61oAk83ovj9Tc_siiaWCOYYR77mjDtnZ&si=KEsdaaAkrIUxdE2Q
Check out my playlist of Photography challenges: https://youtube.com/playlist?list=PL61oAk83ovj_vyHss90B9ok39Et8f7r8a&si=VPqYv0TKdDWb-CSa
I use all different types of cameras from Nikon film to digital, Fujifilm GFX, Hasselblad Xpan, Polaroid, Mamyia TLRs and Instax Mini Evo. Check out my equipment playlist: https://youtube.com/playlist?list=PL61oAk83ovj-qAD2Fo2rhHkVuJtXW-UL7&si=xzAlSCBl4ruW2Y2w
Видео The Secret Behind Nikon’s Second Aperture Scale (It’s Genius!) канала The Photography Toolkit: Dave Caleb
The Photography Toolkit Photography Toolkit photography toolkit Nikon AI lens aperture direct readout Nikon ADR Nikon F3 Nikon F4 Nikon F5 Nikon F2AS Nikon film cameras Nikon lens guide vintage Nikon manual focus lenses Nikon AI-S film photography Nikon F6 classic Nikon gear Nikon viewfinder aperture ring explained ADR ADR Nikon Nikon ADR window AIS Nikon Nikon Ais
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6 июня 2025 г. 17:06:22
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