Schneider Optics PC-SUPER-ANGULON 28 mm f/2.8 manuale d’uso

Schneider Optics Inc  285 Oser A venue Hauppauge · NY ¡¡788 · USA Phone 63¡76¡ 5000 Fax 63¡76¡ 5090 inf o@schneideropticscom www schneideropticscom Exclusiv e distributor f or the USA PC-SUPER - ANGUL ON 28mmf /2. 8 UserManual[...]

2 ListofContents Name of Parts and Cross Section of the Lens  3 General Description ?[...]

 3 1 0,7 0,5 0,4 0,35 0,3 5 3 2 1 ,5 1 ,25 1 8 5,6 4 2,8 4 8 1 6 22 P C - S U P E R - A N G U L O N NameofPartsandCrossSectionoftheLens Focusing ring Distance scale Depth of eld scale Aperture scale Aperture setting ring Pre-set aperture setting lever Shifting knob Index Knurled ring Camera mount Fixing screw f or came[...]

 8 3 1 0,7 0,5 0,4 0,35 m o o 5,6 11 4 16 2,8 22 22 4 8 4 8 16 1 6 22 5 3 2 1 ,5 1 ,25 8 3 1 0,7 0,5 0,4 0,35 m o o 5,6 11 4 16 2,8 22 22 4 8 4 8 16 1 6 22 5 3 2 1 ,5 1 ,25 GeneralDescription Not shifted Maximally shifted The SCHNEIDER PC-SUPER-ANGUL ON 28 mm f /2 8 is a very high- quality wide- angle lens f or 35 mm analog and digital SLR[...]

 GeneralDescription V er tical shift is the most popular : upward, especially when photographing high buildings, so that the camera does not have t o b e tilted upward; and down ward f or product shots at an oblique angle or also f or shots fr om high locations such as tow ers or mountains so that the camera do es not hav e to be tilted downw[...]

6 P ersp ec tiveCorrectionf or AnalogandDig it alPhotogr aphy 8 3 1 0,7 0,5 0,4 0,35 m oo 5,6 11 4 16 2,8 22 22 4 8 4 8 1 6 16 22 5 3 2 1,5 1,25 Horizon T oo much foreground Optical axis Building is true to scale but cropped on top 8 3 1 0 , 7 0 , 5 0 , 4 0 , 3 5 m o o 5 , 6 1 1 4 1 6 2, 8 22 2 2 4 8 4 8 16 16 2 2 5 3 2 1 , 5 1 , [...]

 P ersp ec tiveCorrectionf or AnalogandDig it alPhotogr aphy T oo low T oo wide 8 3 1 0,7 0,5 0,4 0,35 m oo 5,6 11 4 16 2,8 22 22 4 8 4 8 1 6 16 22 5 3 2 1,5 1,25 Horizon Optical axis Building is true to scale and completely reproduced V ertical lines are parallel V ertical shift of 7 mm es the sharpness, produces just visible [...]

8 L arg eImag eCir clef orLensShiftsupto1¡mm The PC-SUPER-ANGUL ON 28 mm f/2 8 already pr oduces an ex ceptionally attened image at f ull aper ture within the 62 mm image cir cle which is thus twice as large in area r elative to the image cir cles of other 35 mm lenses Sharpness and contrast are incr e ased furt[...]

 L arg eImag eCir clef orLensShiftsupto1¡mm Natural size max. ¡¡ mm max. ¡0.5 mm max. 9 .5 mm I m a g e c i r c l e 4 4 m m I m a g e c i r c l e 6 2 m m entation can alwa ys be chosen, e  g irrespective of the shift dir ection with the knob at the bottom with f ree hands, or rather at the top at the tripod?[...]

¡0 Fixin gandRemo vin gtheLens The lens is available in a connection sock e t to mat ch differ ent 35 mm SLR camera systems and is inserted int o the camera b ay onet or thread f or fas- tening t o the camera such that the red dot on the connection so ck e t is op- posite the corr esp onding marking on the camera T o lock the lens i[...]

¡1 Par allelShift The lens is shifted perpendicular to the optical axis relativ e to the ba yonet mount and so also relativ e to the taking f ormat by rotating a knurled shift - ing knob at a shaft which is elastically e xible to pr otect against its damage or injury to the user  The lens tube can be rotated continuously t o the left or t[...]

¡2 Focusin gandDepthofField The f o cusing of wide- angle lenses appe ars to be r elatively non-critical due to their large depth of eld How ever , caref ul focusing is actually necessary to utilize the high imaging quality of this lens t o the full T o ensure maxi- mum brightness of the f ocusing screen and the best recogniti[...]

¡ If the measurement is not carried out using a separate hand e xposure me- ter , but using the TT L exposure meter int egrated in the camera, it is neces - sary to measureinthecenteredposition of the parallel shift while st op- ping down to the w or kingaperture because the arrangement and align- ment of the measuring cell of al[...]

¡ Filters,LensHoodandCameraMounts Only the ov ersized B + W W A lters of the size 67 EW can be used with the SCHNEIDER PC-SUPER -ANGUL ON 28 mm f/2 8 due to the extreme- ly large image angle utilized at maximum shift up t o 93 4° The follo wing table shows the order n umbers of the most popular lter types – furt[...]

¡ Filters,LensHoodandCameraMounts Wide-angleltersofsize6EW Or derno. B+ W UV Filter with MR C coating                                40295 B+ W Skylight lter MR C coating          ?[...]

¡6 Specications Relativ e ap erture                          ¡: 2 8 Eff ective f ocal leng th                       292 mm Nodal point separation HH'           [...]