Well after my first 2 rolls apart the color temperature and exposition issues i've also had a lot of focus problems, since i'm a novice scuba diver i'm not yet used to evaluate the distance underwater.
I was planning to build a ragefinde with 2 laserbeams i have but then i found the HawkEyeŽ Handheld Sonar System PX, it's watrproof up to 60m, from 0.8m to 60m range and 20° angle and also quite cheap, about 100$.
Anybody has used it to focus uw ?
Maual focus undewater
Started by riodda, Aug 18 2009 07:53 AM
3 replies to this topic
#2
Deep6
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Great Hammerhead
- Gender:Male
- Location:Broomfield, CO
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Posted 18 August 2009 - 01:52 PM
Well after my first 2 rolls apart the color temperature and exposition issues i've also had a lot of focus problems, since i'm a novice scuba diver i'm not yet used to evaluate the distance underwater.
I was planning to build a ragefinde with 2 laserbeams i have but then i found the HawkEyeŽ Handheld Sonar System PX, it's watrproof up to 60m, from 0.8m to 60m range and 20° angle and also quite cheap, about 100$.
Anybody has used it to focus uw ?
Are you using a range finder camera? Far easier and cheaper is to get a copy and study Jim & Cathy Church's book. The section on manual focusing is what you need.
Bob
Carpe carp - Seize the carp
#3
riodda
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- Member
- 23 posts
Clownfish
Posted 18 August 2009 - 10:49 PM
Are you using a range finder camera? Far easier and cheaper is to get a copy and study Jim & Cathy Church's book. The section on manual focusing is what you need.
Bob
I'm using the good old nikonos
Easier of a rangefinder ????? Possible ??
I'll have a look to the boo anyway.
#4
Deep6
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- Member
- 837 posts
Great Hammerhead
- Gender:Male
- Location:Broomfield, CO
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Posted 19 August 2009 - 08:47 AM
I'm using the good old nikonos
Easier of a rangefinder ????? Possible ??
I'll have a look to the boo anyway.
The ealry books were written for the Nikonos system. You will find a lot of very useful information in the Church books.
Bob
Carpe carp - Seize the carp
