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External accurate rangefinder.
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PostPosted: Sun Nov 16, 2008 6:45 pm    Post subject: External accurate rangefinder. Reply with quote

I bought a Bessa I as you know , I thinking on it to get an accessory rangefinder. Any suggestion ?


PostPosted: Sun Nov 16, 2008 7:00 pm    Post subject: Reply with quote

That's a tough one.
I put a Voigtlander one on my watch list yesterday but now it is gone.
I have an external one that has a wrist strap.
It is from a Hunting goods store for deer hunters to use with their rifles.
The very long baseline makes for extreme accuracy but it is not show mounted.
You could look for something like this maybe.


PostPosted: Sun Nov 16, 2008 7:26 pm    Post subject: Reply with quote

Buy a laser rangefinder, it's expensive (but not unreasonably) and very precise.


PostPosted: Sun Nov 16, 2008 7:27 pm    Post subject: Reply with quote

Thanks! It is not very important because I think I will use my BESA cameras for landscapes. If will be important I think I will buy from Jrgen (certo6.com)


PostPosted: Sun Nov 16, 2008 7:33 pm    Post subject: Reply with quote

For landscapes just use hyperfocal.
If you know that infinity is important to be in focus.
Simply work backwards from there.
It is easier and more acurate to work from rear focus point when using hyperfocal Wink
Orio's charts is perfect for this.


PostPosted: Sun Nov 16, 2008 8:15 pm    Post subject: Reply with quote

Orio wrote:
Buy a laser rangefinder, it's expensive (but not unreasonably) and very precise.


The cheaper ones (I've got one) are useless for photographers.
So, if you plan to buy one, get a good one...


PostPosted: Sun Nov 16, 2008 8:34 pm    Post subject: Reply with quote

Thank you guys!


PostPosted: Sun Nov 16, 2008 9:21 pm    Post subject: Reply with quote

I have one that I've checked to be accurate enough... but I don't actually use it. Estimating distance isn't too hard to get used to.

At any rate, here are the instructions for mine, these should apply to similar ones for setting the infinity point.

larger, readable size here:

http://www.flickr.com/photos/nesster/972667404/in/set-72157594578815656/


PostPosted: Sun Nov 16, 2008 9:25 pm    Post subject: Reply with quote

Might be I didn't get you well, did you offer yours for sale ?


PostPosted: Sun Nov 16, 2008 9:31 pm    Post subject: Reply with quote

This is a bit too large, the rangefinder for Battle ship YAMATO made by NIKON.
Its base length is 15m wide, it sank a US carrier at 33 Km away.

here is replicas
http://blogs.yahoo.co.jp/issoyamakan/17661661.html

Just for fun.


Last edited by koji on Sun Nov 16, 2008 9:42 pm; edited 2 times in total


PostPosted: Sun Nov 16, 2008 9:34 pm    Post subject: Reply with quote

Shocked Shocked Very Happy Very Happy Very Happy Very Happy Very Happy


PostPosted: Sun Nov 16, 2008 10:29 pm    Post subject: Reply with quote

Attila, give me your address and I'll send mine to you! It just sits in the box waiting to be used. Shocked


PostPosted: Sun Nov 16, 2008 10:33 pm    Post subject: Reply with quote

How lucky I am ! Many thanks!


PostPosted: Sun Nov 16, 2008 10:39 pm    Post subject: Reply with quote

Attila wrote:
How lucky I am ! Many thanks!


You are very welcome my friend! It is a very accurate Voigtlander with its own neat leather case. It fits on the cold shoe of the camera, of course. Or...you can just put it up to the film plane and go from there if you don't have a cold shoe.


PostPosted: Sun Nov 16, 2008 10:45 pm    Post subject: Reply with quote

Wow! Voigtlander! Double luck! It will fit so much for my Bessa I.


PostPosted: Mon Nov 17, 2008 12:11 am    Post subject: Reply with quote

Larry
Super excellent Very Happy

Koji
Super cool Surprised


PostPosted: Mon Nov 17, 2008 1:32 am    Post subject: Reply with quote

koji wrote:
This is a bit too large, the rangefinder for Battle ship YAMATO made by NIKON.
Its base length is 15m wide, it sank a US carrier at 33 Km away.

here is replicas
http://blogs.yahoo.co.jp/issoyamakan/17661661.html

Just for fun.

Ah, now I know what that is. Thank you. I recall seeing those 'ears' sticking out of the side of the Director Tower, but I thought they were just supports for the radar arrays.
Must've been some fearsome optics in that. I wonder what mount they had? Smile

As far as the camera rangefinder goes - I found a Pullin one; it's pretty good and even though it's fifty years old isn't yellowed or faded like many of them, plus it's adjustable if it gets dropped.


PostPosted: Mon Nov 17, 2008 5:43 pm    Post subject: Reply with quote

I did dig deeper this time. Very Happy

Here is another rangefinder (Gun base with a RF)>


Here is a design diagram and picture (??) of Battle ship YAMATO and MUSASHI's big RFs Shocked Shocked


Extremely complex and has two viewing stations for 15.72m and 15.28m on the top of each
Left and Right view-finders. WOW
size of object mirror 120mm
size of object lens 120mm
magnification x 30
vewing angle 1' 30'' (1 degree and 30 second)
exit pupil 4mm (only !!)
range 5 Km - 50 Km
diameter 600mm
operators 7 people
price 400,000 Yen (1944) a couple of million dollar today!! (of course as an antic price will be MORE)

And an Amazing collector in Japan. Handheld ranegfinders
http://blogs.yahoo.co.jp/i1hito/10465645.html

Same guy's collection made in Germany and how to use it (scroll down)
http://blogs.yahoo.co.jp/i1hito/662314.html

I would say he IS the collector!

Enjoy.....

Addenda: Battle ship YAMATO used the above RF, and sank a US aircraft carrier at 33 km away,
his principal gun of 45cm has 45 km range of shooting. He used only two bullets to sink the ship!
"bullet" is a wrong word for this, I just don't know how to say. Embarassed


PostPosted: Tue Nov 18, 2008 1:37 am    Post subject: Reply with quote

That's incredible optical engineering, thanks for showing us that.
I know the Yamato was feared, and with good reason, by the look of it. But even as it was being planned, its day was passing, like so many other huge battleships of that time.
Oh, not bullet, but shell.