Transcript
Rodenstock Photo Optics a brand of the LINOS Photonics GmbH & Co. KG
News New Super WA Lens for Digital Professional Photography
HR Digaron-S 23 mm f/5.6 The new Rodenstock HR Digaron-S 23 mm f/5.6 is the first super wide-angle lens providing a large image circle of 70 mm and a flange focal length and back focal length allowing its use with nearly all types of technical cameras. Its optical construction has been optimized to meet the requirements of digital photography. An almost diffraction limited high resolution is achieved in the whole image area already for a full aperture. So sensors with a pixel pitch down to 6 µm and a resolution up to approx. 60 megapixels can tap their full potential. Especially photographers of (interior) architecture or landscapes, who had to use an analog film for taking extreme image angles until now, will be highly impressed by this lens. The focal length of 23 mm for a 37x 49 mm sensor corresponds to a focal length of 16 mm for a 24 x 36 mm sensor. • The back focal length of 16.5 mm is only 1 mm shorter compared to the HR Digaron-S 28 mm and leaves enough space between the rear mount and the sensor for swing-and-tilt movements without touching the sensor or rear standard. • The flange focal length of approx. 45 mm allows focusing at infinity with almost all technical camera models. On many of these cameras a flat lens board can be applied, which makes it much easier to set the aperture and the shutter speed and permits the use of the Rollei Electronic shutter. • The retro-focus design causes a steeper light incidence at the margin. So the further fall-off in illumination, which is inevitable when using micro lens sensors, can be avoided. • No vignetting occures already for the full aperture f/5.6. • The optical effect of the sensor cover glass has been taken into account in the optic calculation for eliminating its spherical and chromatic aberration, as well as its astigmatism. • The high tech multi-coating provides for ultimate transmission, excellent contrast and freedom of ghost and flare. • The HR Digaron-S 23 mm f/5.6 in Copal shutter size 0 is available also with the “Focus-Mount” helical focuser. • An especially designed center filter is in preparation The lens series Apo-Sironar digital HR so far will be re-named as HR Digaron-S like the new HR Digaron-S 23 mm f/5,6.
Despite of the shortest focal length 23 mm this new lens provides enough flange focal length for technical cameras
Data sheets Formats, dimensions, shutter data Image circles, movement ranges Performance data 28 mm f/4.5 mm
Rodenstock Photo Optics a brand of the LINOS Photonics GmbH & Co. KG
News Back to lens description
HR Digaron-S (former name: Apo-Sironar digital HR) Formats, shutter sizes, dimensions, weight
New:
Lens
Maximum Shutter recomm. size sensor size
Push-on Filter mount Ø thread a b
Rear barrel Ø c
Flange foc. Flange to Overall lens end length length 1) d e f
23 mm f/5.6 28 mm f/4.5 35 mm f/4 60 mm f/4 100 mm f/4 180 mm f/5.6
37×49 mm 37×49 mm 37×49 mm 37×49 mm 37×49 mm 37×49 mm
75 mm 75 mm 70 mm 51 mm 60 mm 70 mm
48.0 mm 48.0 mm 48.0 mm 42.0 mm 42.0 mm 60.0 mm
44.8 mm 28.8 mm 89.6 mm ≈ 750 g 53.1 mm 36.7 mm 105.5 mm 830 g 53.5 mm 29.2 mm 80.4 mm 480 g 64.3 mm 24.0 mm 57.6 mm 240 g 98.8 mm 22.1 mm 73.4 mm 370 g 177.4 mm 40.6 mm 90,3 mm 425 g
1)
0 0 0 0 0 0
M 72 × 0.75 M 72 × 0.75 M 67 × 0.75 M 49 × 0.75 M 58 × 0.75 M 67 × 0,75
Weight with Copal
d
With Copal shutter for scale 1: ∞
All lenses of the HR Digaron-S series are available not only with the shutters given in the following table, but also with a normal mount (with 39 mm Leica thread) or alternatively with the “Focus-Mount“ helical focuser.
g
a
c
b
Focusing range and flage focal length with Focus-Mount
Shutter type and size
Shutter speeds range
Copal 0 Copal Press 0 Prontor Magn. 0 Rollei Electron. 0
B, T, 1/500 s … 1 s • • B, 1/125 s … 1 s • • B, 1/125 s … 32 s • B, 1/500 s … 30 s •
Smallest f-stop increments
10,1 mm 18.0 mm 10.5 mm 5.3 mm 3.4 mm 21.9 mm
Electronic
Shutter data
Mechanical
∞ – 0.25 m / 0.8 ft 26,1 mm ∞ – 0.3 m / 1.0 ft 34.4 mm ∞ – 0.4 m / 1.3 ft 34.8 mm ∞ – 0.7 m / 2.0 ft 45.6 mm ∞ – 1.8 m / 6.0 ft 80.1 mm ∞ – 4.0 m / 13.0 ft 158.7 mm
Self cocking
23 mm f/5.6 28 mm f/4.5 35 mm f/4 60 mm f/4 100 mm f/4 180 mm f/5.6
Manual cocking
New:
e
Flange Max. flange foc. length to lens end d e
X-synchronized
Lens Focusing range
• • • • 1/10
The new super wide-angle lens HR Digaron-S 23 mm f/5.6 provides an outstanding imaging quality thanks to its refined lens design with a large numer of lens elements
f
Using digital lenses on cameras without bellows such as shift or panoramic cameras requires the use of a focusing facility. For this purpose, the Focus-Mount can be combined with all Rodenstock lenses in Copal shutter size 0. Existing lenses can be installed at a later date by the manufacturer.
Screw g thread
Lens board Lens board opening thickness
Accessories required
M 32.5 × 0.5 M 32.5 × 0.5 M 32.5 × 0.5 M 39 × 0.75
34.8 mm 34.8 mm 34.8 mm 41.8 mm
Control Unit Control Unit
1.5 … 4 mm 1.5 … 3 mm 1.5 … 4 mm 1.5 … 3 mm
Rodenstock Photo Optics a brand of the LINOS Photonics GmbH & Co. KG
News Back to lens description
HR Digaron-S (former name: Apo-Sironar digital HR) Working apertures, image angles, image circles and movement ranges Ref. image scale
Recomm. Image Image circle Movement range [mm] 2) vertical/horizontal (landscape format) working angle diameter 24×36 mm 37×37 mm 33×44 mm 37×49 mm 36×56 mm 40×54 mm f-stop
23 mm f/5.6 28 mm f/4.5 35 mm f/4 60 mm f/4 100 mm f/4 180 mm f/5.6
1: ∞ 1: ∞ 1: ∞ 1: ∞ 1: ∞ 1: ∞
5.6-8 5.6-8 5.6 5.6 5.6 5.6-8
2)
112° 101° 90° 60° 39° 25°
70 mm 70 mm 70 mm 70 mm 70 mm 80 mm
18 / 15 18 / 15
11 / 11 11 / 11
11 / 9 11 / 9
7 / 5 7 / 5
3 / 2 3 / 2
2 / 2 2 / 2
18 / 15
11 / 11
11 / 9
7 / 5
3 / 2
2 / 2
18 / 15
11 / 11
11 / 9
7 / 5
3 / 2
2 / 2
18 / 15
11 / 11
11 / 9
7 / 5
3 / 2
2 / 2
24 / 20
17 / 17
17 / 14
13 / 11
11 / 8
9 / 8
These values apply to the recommended working aperture at the given scale; with increasing scale image circle and movement ranges increase
Image circles (original size) The lenses HR Digaron-S with focal lengths up to 100 mm are recommended for use with sensor formats larger than appr. 37x49 mm only if no larger camera movements are needed.
HR Digaron-S 180 mm
If larger camera movements are needed for correcting converging lines or for lens swing and tilt (according to the Scheim pflug rule) with sensor formats of 37x49 mm or larger then the new line of Rodenstock lenses HR Digaron-W with image circle diameters from 90 mm upwards should be used.
40x54 mm
24x36 mm 32x43 mm
37x37 mm
5 mm · 60 m · 3 mm 8m · 1 · 2 00 m m m m 23
36x54 mm 37x49 mm
New:
Lens
The large image circle of 70 mm of the new HR Digaron-S 23 mm f/5.6 allows more or less camera movements with all sensor formats of current professional digital backs
Rodenstock Photo Optics a brand of the LINOS Photonics GmbH & Co. KG
News Back to lens description
HR Digaron-S 23 mm f/5.6 Modulation transfer function 0.3
0.5
f-stop 5.6 0.7
0.85
1
100
80 70 60 50
Rel. image height 0
0.7 0.85
f-stop 5.6
11 8
-4-5
0 0 10.5 Image height [mm]
17.5
0.3
29.7
35.0
0.5
0.7 0.85
1
0.8
35.0
0.0
Modulation transfer function Rel. image height
24.5
24.5
Infinity ... Scale 0.03x
Rel. image angle 1.6
meridional
16
-3
Distortion sagittal
1
1 - cos 4
0 10.5 17.5 Image height [mm]
20
Infinity 0.5
f-stop 8 0.7
0.85
1
100 90
-0.8
0x 0.01x 0.02x 0.03x
-1.6 -2.4
0 10.5 17.5 Image height angle [°] [mm]
80 70
24.5
35.0
Longitud. chrom. aberration Infinity
60 Long. chrom. aberration [mm]
blue
50 40 30 20 sagittal
10
0.5
-2
30
10
Infinity
-1
40
Distortion [%]
Modulation [%] at 80, 40, 20 and 10 lp/mm
90
Modulation [%] at 80, 40, 20 and 10 lp/mm
Fall-off in illumination Fall-off in illumination [f-stops]
Rel. image height
Infinity
meridional
0 0 10.5 Image height [mm]
17.5
All spatial frequencies [line pairs/mm], image heights [mm] and scales are related to the film or sensor side
24.5
29.7
35.0
green yellow
red
0.4 0.2 0.0 -0.2 -0.4 438 486 534 Wavelength [nm]
582
630
678
LINOS Photonics GmbH & Co. KG Photo and Lab Technology Isartalstr. 43 80469 Muenchen · Germany Phone Telefax e-mail Internet
+49 (0)89 25 54 58-285 +49 (0)89 25 54 58-164
[email protected] www.rodenstock-photo.com
