Entrance Pupil Database

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 300D / Digital Rebel (EOS Digital Rebel)	0mm	40mm	40mm
Nikon D70	0mm	52mm	36mm
Nikon C8800	19.1 mm	67.9 mm	N/A
Canon EOS 350D / Digital Rebel XT (measured by NP)	0 mm	37.5 mm	38.5 mm
Canon EOS 300D / Digital Rebel (measured by NP)	0 mm	40 mm	38.5 mm
Nikon D100 with MB-D100	0 mm	93 mm	33,5 mm
Fujifilm FinePix S7000	0 mm	32.8 mm	69mm + 37mm(Adapt.Tube)=106mm
Canon EOS 20D	0 mm	40 mm	36.5mm
Canon PowerShot A630	15 mm	28 mm	0mm (fixed lens)
Nikon D300	0 mm	47.6 mm	42.4mm
Nikon D300 + MB-D10	0 mm	90.2 mm	31.4mm
Nikon D2H (+D2Hs/D2X/D2Xs?)	0 mm	79 mm	29.5 mm
Pentax K10D	0 mm	42,1 mm	36,7 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		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)
EF-S 10-22mm	10mm	66mm
Kit Lens 18-55mm	18mm	47mm
Kit Lens 18-55mm	24mm	23mm
Kit Lens 18-55mm	35mm	45mm
Kit Lens 18-55mm	55mm	55mm
Canon 17-40mm	17mm	71mm
Canon 17-40mm	28mm	69mm
Canon 17-40mm	40mm	72mm
Canon 50mm f1.8II	50mm	23mm
Sigma70-300	70mm	83mm
Sigma70-300	85mm	70mm
Sigma70-300	100mm	45mm
Sigma70-300	135mm	-30mm
Sigma70-300	200mm	-30mm
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
Raynox DCR-CF185PRO	Conversion lens	80mm
Canon PowerShot A630	35mm (wide open)	31mm
<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 ($\infty$)

Number of pics for 360°

Focal Length Lens Type	crop factor 1.5/1.6				Full Frame
	Portrait		Landscape		Portrait		Landscape
	pics/360°	rotate	pics/360°	rotate	pics/360°	rotate	pics/360°	rotate
8mm fisheye	4	90°
10.5mm fisheye	4	90°
18mm rectilinear	10	36°
24mm rectilinear	12	30°
35mm rectilinear	18	20°
50mm rectilinear	24	15°
70mm rectilinear	36	10°

Related Resources

• 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