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Maintenance Instructions

NOMENCLATURE

PERCAUTIONS

Avoid touching the lens surface. Remove the dust on the lens surface 
with a lens cloth or a blower. Keep the lens cap attached because it is 
unable to attach UV filter. 

Using a circular motion with lens cloth or cloth, gently remove oil, 
fingerprints,  and  grime  from  the  lens  surface,  working  from  the 
center outward. 

If  the  lens  is  taken  from  a  cold  environment  into  a  warm  one, 
condensation may develop on the lens surface and internal parts. To 
prevent condensation in this case, please take measures to protect 
against moisture before moving the lens.

(Canon EF-mount) 

Summary of Contents for LAO-25-CR

Page 1: ...Q 400 066 1316 Email sales laowalens com Tel 0551 68100251 Fax 0551 68100252 11 7 Add Building 7 Baibang Pioneering Park No 11 Tianshui Road Hefei City Anhui Province China www laowalens com FACEBOOK...

Page 2: ...Prior to use please read this instruction manual carefully before to ensure proper use Keep the Instruction Manual in hand and refer to it whenever needed If you are unable to solve the problem by rea...

Page 3: ...ash of the camera the lens itself may block light and cause light fall off So external flash can be recommended in such case Safety Precautions Compact body and ease of use make the lens a perfect mat...

Page 4: ...h UV filter Using a circular motion with lens cloth or cloth gently remove oil fingerprints and grime from the lens surface working from the center outward If the lens is taken from a cold environment...

Page 5: ...ach then quick release plate if needed When shooting vertically turn the camera and lift the knob upwards and then line up the optical axis with the 90 position index on the tripod mount ring Refer th...

Page 6: ...an give priority to magnification or to framing Focusing Instructions Limited to close up shots it allows a focusing distance range of 173 0mm to 223 8mm and can not focus to infinity Gently turn the...

Page 7: ...ases However for closeup photography you can not ignore the change in the effective f number and need to increase EV based on the circumstance For understanding of actual EV the exposure compensation...

Page 8: ...bject itself It is difficult to obtain correct exposure the first time so please keep practicing SPECIFICATIONS Since diffusion materials may reduce the light of the flash so selecting a macro flash w...

Page 9: ...continued from previous page METERING TABLE METERING TABLE...

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