Tank T-55 had a sight - TSh2B-32P.
At tank T-62 have a new - modernized a sight - TSh2B-41
Here that write in sources:
"On T-62 have applied the improved sights and prompting devices, for example, telescopic sight TSh-2B-41 allowed tankmen to conduct exact fire on a distance to 4 thousand in m. we Will remind, that, according to foreign military experts, for fights on the European battlefield would be enough and 2,5 3 thousand in m. commander turrets have built in a binocular periscope rotating roof with fivefold increase in the afternoon and quadruple - at night. For the tipper-of also have entered two similar devices with range of action of the Watch facility of 800 m. for the mechanic-driver and charging have left same, as by the previous tank."
source (Russian):
http://armor.kiev.ua/Tanks/Modern/T62/T62_1.html
other source:
http://www.btvt.narod.ru/uchebka/tshb32p.htm
http://www.btvt.narod.ru/4/t62.htm
http://btvt.narod.ru/4/t62weapon.htm
http://armoured.vif2.ru/t-62.htm
Sorry for my bad English.