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Posts Made By: John Rennekamp

August 6, 2023 02:49 PM Forum: Mounts

Problem with Ioptron HAZ 31

Posted By John Rennekamp

I just got a new HAZ 31 and out of the box it will not power up. I tried both a 12 volt power supply and the AC adapter and nothing happens. Also put a new battery in the hand controller and nothing at all.

Anyone else have similar issue?

September 15, 2023 08:32 PM Forum: Refractors

What is the difference between TV diagonal and the TV Everbright on Genesis sdf?

Posted By John Rennekamp

I would suspect if the diagonal is original to the scope it is the enhanced diagonal and not Everbrite. I am not sure if they made the Everbrite when they were making the Genesis. The Genesis I had did not have the Everbrite.

Also, I found out recently that some of the original TV diagonals, I assume they were the enhanced, did not have any sticker or other identification.

My understanding is the difference is in light transmission where the Enhanced is bout 96% and the Everbrite is about 99%. I think the Everbrite surface is a little more durable.

I suspect you would have great eyesight if you could detect the difference in a Genesis between 96% and 99% light transmission.

Call Televue if you want to know for sure. They are great on the phone and Al Nagler may be the one you talk with.

April 8, 2025 02:36 PM Forum: Mounts

Takahashi Spaceboy

Posted By John Rennekamp

I recently picked up a used Takahashi Spaceboy mount in excellent condition. I contacted Takahashi USA about getting a pdf version of the owners manual and they indicated they have not had one for 30 years. Anyone know where I can get a pdf version? Thanks.