Difference between revisions of "Entrance Pupil Database"
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Revision as of 15:12, 14 May 2009
Wouldn't it be great if everyone entered their values for their NPP / Nodal Point / Entrance Pupil for lens and camera combinations. Some searching on the web will find a lot of people saying they want to start to create a database of some kind, but have not seen anything substantial so far (correct me if I am wrong).
Please enter your own values if they are not listed.
Thanks, --Richard Korff 11:12, 13 May 2005 (EDT)
To cater for all the different camera bodies and lenses, the tables have been split into 3 parts:
- The first table shows the position of the tripod mount in relation to the lens axis. This is easy to measure and is dependent only on the camera body.
- The second table shows the actual entrance pupil distance which is only dependent on the lens itself. Note that the NPP for fisheye lenses is not constant over the image circle's FoV, so you will sometimes find different NPP values depending on the angle where your images overlap.
- The third table shows the number if pics neccessay for a full 360° coverage and the rotation angle between shots.
Use as much as possible actual measurements rather than the reading on your panorama head, unless your are sure these are the same.
To enter a line for your combination, edit the page by clicking edit at the top of the screen (you may need to create an account or sign-in first), and edit the table below.
Tripod Mount Measurements
|Camera||Tripod mount off-center (C)||Tripod mount height (H)||Tripod mount length (L1)|
Use the correct name of your camera. For digital camera's, please use the name as mentioned at dpreview.
Looking at the bottom of the camera, the distance between the the middle of the tripod mount to the lens axis (0 if the tripod mount is over the centre of the lens)
Facing the camera, the distance from the base of the camera to the center of the lens
Looking at the bottom of the camera, the distance between the middle of the tripod mount to the base of the lens base, or base for adaptor tube. For fixed lens camera's which do not allow use of adaptors this column is not applicable.
|Canon EOS 5D MKII||0 mm||43.5 mm||38.5 mm|
|Canon EOS 20D||0 mm||40 mm||36.5 mm|
|Canon EOS 40D||0 mm||42 mm||38.5 mm|
|Canon EOS 300D / Digital Rebel (EOS Digital Rebel)||0 mm||40 mm||40 mm|
|Canon EOS 300D / Digital Rebel (measured by NP)||0 mm||40 mm||38.5 mm|
|Canon EOS 350D / Digital Rebel XT (measured by NP)||0 mm||37.5 mm||38.5 mm|
|Canon G9||12 mm||29 mm||N/A|
|Canon PowerShot A630||15 mm||28 mm||0 mm (fixed lens)|
|Fujifilm FinePix S7000||0 mm||32.8 mm||69mm + 37mm(Adapt.Tube)=106mm|
|Nikon C8800||19.1 mm||67.9 mm||N/A|
|Nikon D2H (+D2Hs/D2X/D2Xs?)||0 mm||79 mm||29.5 mm|
|Nikon D70||0 mm||52 mm||36 mm|
|Nikon D80||0 mm||42.8 mm||40 mm|
|Nikon D100 with MB-D100||0 mm||93 mm||33.5 mm|
|Nikon D300||0 mm||47.6 mm||42.4 mm|
|Nikon D300 + MB-D10||0 mm||90.2 mm||31.4 mm|
|Pentax K10D/K20D||0 mm||42.2 mm||37.5 mm|
|Sony Alpha A100||0 mm||37 mm||35 mm|
Entrance Pupil Measurements
|Lens||Focal Length||Entrance Pupil Length (L2)|
Enter the exact lens name, or if you are using a camera with a fixed lens the name of your camera as mentioned at dpreview.
Facing the side of the lens, the distance from the base of the lens to the Entrance Pupil. A negative value means the entrance pupil is before the lens base. (not sure if this makes sense in a theoretical way)
|Canon 50mm f/1.8 II||50mm||23mm|
|Canon 35mm f/2||35mm||12.5mm|
|Nikkor AF-S DX 18-70mm||18mm||51mm|
|Nikkor AF-S DX 18-70mm||24mm||44mm|
|Nikkor AF-S DX 18-70mm||35mm||33.5mm|
|Nikkor AF-S DX 18-70mm||50mm||24.5mm|
|Nikkor AF-S DX 18-70mm||70mm||-6.5mm|
|Nikkor AF DX 10.5mm||10.5mm||45.5mm|
|Nikkor AF DX 10.5mm||10.5mm||46mm|
|Sigma 8mm F4.0 EX||8mm||47.5mm|
|Sigma 8mm F4.0 EX||8mm||51mm|
|Nikon C8800 at Wide inf. (is this at the widest setting ?)||8.9mm ??||75mm center of tripod mtg screw to Ent Pupil|
|Peleng-N 8mm F3.5||8mm||44mm|
|Sigma 8mm F4.0 EX DG||8mm||49mm|
|Opteka 0.22X UHD II FishEye||0.22X - 8mm||35.75mm|
|Tamron 90mm F2.8 Di2 Macro||90mm||34mm|
|Sigma 10-20mm F4-5.6 EX DC||10mm||62mm|
|Sigma 10-20mm F4-5.6 EX DC||14mm||64mm|
|Sigma 10-20mm F4-5.6 EX DC||20mm||68mm|
|Sigma 30mm F1.4 EX DC (EOS350D, L1=38.5)||30mm||26.5mm|
|Tamron 11-18mm F4.5-5.6 (EOS350D, L1=38.5)||11mm||58.5mm|
|Tamron 11-18mm F4.5-5.6 (EOS350D, L1=38.5)||14mm||59.5mm|
|Tamron 11-18mm F4.5-5.6 (EOS350D, L1=38.5)||18mm||62.5mm|
|Tamron 17-50mm F2.8 XR DI II LD ASP (EOS350D, L1=38.5)||17mm||56.5mm|
|Tamron 17-50mm F2.8 XR DI II LD ASP (EOS350D, L1=38.5)||24mm||48mm|
|Tamron 17-50mm F2.8 XR DI II LD ASP (EOS350D, L1=38.5)||35mm||40.5mm|
|Tamron 17-50mm F2.8 XR DI II LD ASP (EOS350D, L1=38.5)||50mm||31.5mm|
|Carl Zeiss Jena Flektogon 20mm f/4||20mm||17.5mm|
|Raynox DCR-CF185PRO||Conversion lens||80mm|
|Canon PowerShot A630||35mm (wide open)||31mm|
|Canon G9||7.4mm (wide)||33.7mm from tripod screw|
|Canon G9||44.4mm (tight)||-10mm from tripod screw|
|<Manufacturer / Lens>||<Focal Length>||<Entrance Pupil Length>|
- To calculate the Entrance pupil distance add the Tripod Mount Length (L1) from the camera and the Entrance Pupil Length (L2) from the lens. So for example for a Canon 300d and a 10-22mm at 10mm, the total Entrance pupil distance from the tripod mount is 40mm + 66mm = 106mm
- For these Focal Length values the actual focus is set to infinity ()
Number of pics for 360°
|crop factor 1.5/1.6||Full Frame|
- VRwave lens database - http://www.vrwave.com/panoramic/photography/lens_database.html
- Panoramic Resolution by Ken Turkowski - http://www.worldserver.com/turk/quicktimevr/panores.html
- Panoramic Calculator by Frank van der Pol - http://www.frankvanderpol.nl/fov_pan_calc.htm