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Member Since 02 May 2007
Offline Last Active May 22 2014 02:13 PM

Posts I've Made

In Topic: where to get Nikonos RS serviced?

31 December 2013 - 11:06 AM

Mike Megleski does the Jim Church photo courses aboard the aggressor fleet. He has a business servicing nikonos cameras.  http://www.underwatercamerarepair.com/

In Topic: Testing ttl strobe accuracy on a film camera?

31 December 2013 - 09:09 AM

Testing ttl from the Jim Church essential guide to nikonos systems book. This is for nikonos strobes but your strobe should work this test also. 

Part 1

Set shutter for a

Open aperture to the lowest  number f stop

Set strobe to ttl

Aim strobe into camera lens

Trigger shutter

If ttl is working it should be a brief flash and a quick recycle

If the flash is long and the ready light blinks for a full flash signal ttl is not functioning

Part 2

Set aperture to f22

Aim strobe away from camera

Cover the lens with lens cap or hand

Trigger shutter

If ttl is working it should be a bright flash and the ready light will blink as you have done a full power flash.

On the nikonos 5 if battery is weak the ttl system will fail also. So check your f100 camera battery too.

On a roll of film using macro or close focus shots if 1 or more shots are black the ttl is failing

In Topic: Wanted: D90/Ikelite housing/Strobes package

24 December 2013 - 08:32 AM

I have a ikelite 100a strobe. With a digital camera you can use this strobe in manual modes. It is in excellent condition. Includes strobe,arm and sync cord. i would like $350usd plus shipping. I use with my nikon d40x camera an ikelite  ai strobe which is the older version of the 100a strobe. Works very good.

In Topic: 2+ diopter for Megadome?

15 October 2013 - 12:06 PM

No the specs i gave you is from nikon site which is 12 inches from the sensor plane. And if you look at it 1foot  when set to 16mm and .9 foot when set to 20mm to 28mm. And the distance from the sensor plane to the exterior of the dome  is about 6 inches. You could shoot pictures from about 3 inches from the exterior of the port which would be hard for strobe position. It would be real close focus wide angle. On my system i use the +4 diopter as per aquatica chart. For macro i do add a second +4 diopter to get 1:1 macro but even with 2 - +4 diopter i  have about 6 inches from the port to subject so lighting is not difficult.

In Topic: 2+ diopter for Megadome?

15 October 2013 - 08:33 AM

I have an aquatica d40x housing with the 6 inch domeport. I use the 16-85mm lens from nikon. I use the +4 diopter to recreate the focus point on land. My buddy has a nikon d90 in aquatica housing with the 8 inch domeport also using the 16-85mm lens and he uses the +3 diopter to recreate the focus point on land. On your system if you use the +2 diopter your focus point under the domeport would be closer. I checked the nikon site and your lens spec is below. Right now your closest focus point is 1 foot. With a +2 diopter your closest focus point would be around 10 inches. With the size of your domeport and sunshade on the domeport i think getting strobe position might be difficult and create shadows trying to light subjects starting at 10 inches.



Closest focusing distance
0.29 m (1.0 ft.) at a focal length of 16mm or 35mm, 0.28 m (0.9 ft.) at a focal length between 20mm and 28mm