Irix 15 mm f/2.4 Blackstone

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Do not leave the lens faced downwards on any surface and with the bayonet part attached, if the rear lens cap is removed. Working with hyperfocal scale requires aperture control and that is why you should pre-select the camera’s aperture mode or a manual mode. 4 Blackstone Lens HOW TO ATTACH THE LENS TO THE CAMERA The mounting method is described in the camera’s manual and depends on a given system solution. The maximum aperture value in some of the cameras amounts to F2. Its exact position is described in the camera’s user manual. Remove calibration window cover, by unscrewing torx bolt (T6 size). The lens hood also secures the front lens element against mechanical damages, water splashes, raindrops and snowflakes. This makes it easy to find the infinity position without even looking. Additional lens caps can be purchased separately at Irix Online Store www. When filter window is not used, it is recommended to close it down by lowering the blind stopper down to its starting position. To put the cap on or remove it, you should hold the lens body with one hand and grasp the grip, placed in front of the cap, with your second hand. This value increases the range of planes distance which are in focus in comparison to previous examples. Combined sets of filter threads can cause vignetting. It is worth to remember that the aperture value and the depth of field not only influence the image aesthetics, but they are also important when it comes to a photo’s technical quality. Additionally, with wide aperture values the risk of contaminated image sensor is higher than in the case of narrow aperture values. 4 Blackstone Lens TABLE OF CONTENTS [3] Front Lens Cap 4 Front Filter Thread 5 Lens Hood 6 Filter Window 7 Focus Scale Calibration 8 Focus Ring Lock 9 Focus Ring 10 Depth of Field Scale 10 Hyperfocal Scale 11 Rear Gelatin Filter Slot 12 Hyperfocal Scale 16 Rear Gelatin Filter Slot 18 How to Attach the Lens to the Camera 19 Rear Lens Cap 20 Aperture Control 21 Hard Lens Case 22 Maintenance 23 Safety Precautions 24 Technical Specification 25 Template for Cutting Gelatin Filters 26 Extended User Manual – Irix 15 mm f/2. Any misaligned and too forceful efforts may hinder the unscrewing process and damage the filter and the lens. It is forbidden to look through the lens directly at the sun and towards the sun, as it may permanently damage your eyesight. 4 Blackstone Lens DEPTH OF FIELD Przykład 3 Still without changing the focus distance, we adjust aperture to F16. To open the filter window, move the blind stopper up, by hiding it in the housing until you hear a distinctive „click” sound