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5. STORAGE AND MAINTENANCE RULES 

 
The camera lens is a complicated optical device and it requires careful operation and maintenance. Protect it against impacts, 

sudden fluctuations in temperature and also against dust and moisture. 

Upon entrance into a warm room from outside frost do not open the lens immediately. Let it warm up to prevent condensation on 

the optical surfaces. 

Remove dust and moisture from the lens with a soft brush, cloth, or a product specific to this purpose. 

Note:

 During inspection it can be found out that some lenses may have small bubbles in the glass, insignificant scratches and fluffs 

which do not in any way affect image quality and have been accepted by the ARAX standard. 

 
 

Version 2 (5-25-2003) 

 
 
 
 

 

 
 
 
 
 
 
 
 
 
 
 
 

 

ARAX Inc. 

Kiev, Ukraine, 01042 

www.araxfoto.com 

[email protected] 

Summary of Contents for PCS Arsat H(K) 2.8/35

Page 1: ...ality and increase contrast range by enhancing integral transmission and decreasing the dispersion The camera lens operates in the temperature range from minus 15 to 45 С Figure 1 2 TECHNICAL SPECIFICATIONS Image ratio mm 24х36 Focal distance mm 35 Aperture ratio 1 2 8 Design 11 elements 8 groups Angle of view o Without shifting optical block 67 o 20 o Having shifting optical block 80 о Short focu...

Page 2: ...f the light falls on the edges and center of the field It is recommended to use the aperture values from 16 to 22 4 3 Aperture operation Manual aperture operation is provided for in the lens Select the value by rotation of the ring 4 first pulling it aside along the optical axis towards the camera In the released condition rotate the ring 4 from set up value to the value 2 8 Before exposure do not...

Page 3: ...s situated at right angles to the ground Then in order to achieve the intended composition the optical block of the lens shall be shifted vertically upwards due to this the distortion is eliminated See Figure 5 Fig 5 Sometimes instead of image correction with the intention of creating special effects the occasion arises to create even more exaggerated distortions In this case you would incline the...

Page 4: ...single panoramic photograph Fig 7 which corresponds to a negative with an image format of 6х9 сm and normal perspective Fig 7 4 8 Obstruction elimination Obstructions like trees or telegraph poles located relatively closely to the camera and appearing at the image edge can be eliminated by means of lens shifting and rotating the camera For instance the obstruction pole is located at the image edge...

Page 5: ...oom from outside frost do not open the lens immediately Let it warm up to prevent condensation on the optical surfaces Remove dust and moisture from the lens with a soft brush cloth or a product specific to this purpose Note During inspection it can be found out that some lenses may have small bubbles in the glass insignificant scratches and fluffs which do not in any way affect image quality and ...

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