20 Most Recent Pentax 8X21 Ucf R Binocular Questions & Answers

Lens coatings sometimes aren't as robust as they should be and some of the lenses are compound types and take a deal of dismantling/reassembly. I suggest, if you aren't used to servicing optics you should entrust the work to a specialist, especially as Pentax is a fairly premium product.

no there is not

Contact Pentax or try Ebay

have you tried ebay

Fixya is not a repair facility. Contact your local optical repair workshop, or Pentax direct.

Depends on what's wrong with it. Best and safest bet is to take it to a repair facility - they'll be able to sort out the problem and collimate the instrument.

Sorry, cannot locate San Antoino

You have to remove the front element carrier from the scope body and tighten the ring inside the carrier Now the funpart remove the thread protector then the gold ring making sure that the element carrier don't rotate while doing that Then count the rotations till you get the element out as that is important for the parralax free setup or you could just remove it and after repair reparrallax it your self YouTube has some vids on how to do that Threadloc the ring to hold lens tight inside the carrier reinstall carrier to maintube but you have to purge the tube of air and moisture to stop condensation inside the scope and fill with an innert gas Reparrallax scope if required and test zero

you cold try lubing it with the drip down method, squirt penetrating oil in the focus rack and hold so it flows into rack. They used a thick grease for damping, you may try heating it in an oven up to 130F for 5 minutes (or leave in a hot car) to soften grease and then actuating the focus to get the hardened grease back into the helix.

alignment of pentaprism, you need to send it in or if its a goner, try it yourself. Unscrew one of the objective barrels and observe the pentaprism mounts. They may be in screw driven supports. adjust screw one at a time to see if you can get it back into alignment.

Either order from Pentax or take the screw from the other eyepiece and take it to a hardware store and match it up.