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Pau Hana Daz · 12-01-2012, 09:46

I'm in the market for a decent metal sextant and have narrowed my search down to the Astra IIIb and the Tamaya Venus MS-933. Both appear to be good sextants, both aluminum and both seem to have positive feedback from users. I know the Tamayas are a bit older than the Astras, but I'm thinking that condition of the instrument is more important than age.

Other differences that I've found are:

The Venus is slightly smaller (7/8) than the Astra
The Astra has LED illumination, the Venus does not
The Venus has a traditional mirror setup, the Astra can be configured with traditional or whole horizon (the Astra I'm considering is WH)

Price-wise the two I'm considering are almost the same (used from private parties). Per the owners, the Astra has been used for a few years by a knowledgeable user, the Venus has never been to sea and was only purchased/used for learning CN.

I've tried to "plus/minus" each to help decide, but I just haven't been able to decide which way to go. Personally I think I like the idea of starting with a WH mirror and being able to change to traditional later if I want. The illumination also seems nice (but we do have headlamps and flashlights aboard, and it's a moot point for noon shots anyway). Between these two specific instruments, I like the lack of usage wear on the Tamaya over the "used for a few years" of the Astra.

So, any input here? Given good condition and similar pricing, which would you lean toward and why?

Thanks,

S/V Alchemy · 12-01-2012, 10:42

For what it's worth:

I agree that WH is good to start with, and I have a WH Astra IIIb I like and I use.

I have a split mirror Freiberger sextant of mid '70s vintage which I prefer for star sights.

I've never even seen a Tamaya sextant, so I can't comment. I still own a working NC-77 celestial calculator of vintage years, however, and it's been useful to me.

**sneuman** · 12-01-2012, 11:20

Have used a friend's IIIb and thought it was a very good instrument for the money. Have NOT used a Tamaya (nor, like S/V Alchemy, ever handled one), so can't make a comparison.

gjordan · 13-01-2012, 10:56

I have a Tamaya that I like, but I have no clue if it is better or worse than an Astra. If I was in your situation I would research parts and service availability before I made a decision. The very best sextant isnt any good if you break a small part and cant get a replacement.____Grant.

lolarose · 13-01-2012, 11:28

it is your choice, but in this case i would go for astra

chala · 14-01-2012, 08:29

Quote:

Originally Posted by S/V Alchemy

I have a WH Astra IIIb I like and I use.

I have a split mirror Freiberger sextant of mid '70s vintage which I prefer for star sights.

I do agree with the above. I used to own a “tamaya” which was far better than the two other but it had Polaroids filters, a prism telescope and illumination. I bought it in Hong Kong in 1970 and sadly it went down with the boat in 1974.

cburger · 14-01-2012, 09:48

A lot of very reasonably priced high quality sextants for sale on EBay.

S/V Alchemy · 14-01-2012, 10:13

I got my Astra new and my Freiberger from another sailor privately. They are both excellent instruments. I took the Astra offshore in '09 on a delivery and everything, including my plot, worked acceptably.

Once I'd figured out my height of eye was higher on a Bristol 45.5 than on a Viking 33, that is.

Pau Hana Daz · 23-01-2012, 16:38

Thanks for the input and responses everyone. After pro and conning the issue to death, I finally made my decision and bought a WH Astra today.

foggysail · 23-01-2012, 17:31

Now the issue is settled with the Astra, if no objections (not hijacking, just sextant discussions) I would like to continue the thread, same topic although a little broader. There is a boat load of very inexpensive metal sextants over in EBay. By inexpensive, I mean under $100! And yes, many are tiny but no all. Does anybody have experience with any of these inexpensive units....I believe most come from India but I could be wrong. Any comments on some of these? Many people have interest in learning to use a sextant or for that matter could use one as a backup but cannot afford big bucks for something with pedigree papers.

Foggy

**goboatingnow** · 23-01-2012, 17:50

Quote:

Originally Posted by foggysail

Now the issue is settled with the Astra, if no objections (not hijacking, just sextant discussions) I would like to continue the thread, same topic although a little broader. There is a boat load of very inexpensive metal sextants over in EBay. By inexpensive, I mean under $100! And yes, many are tiny but no all. Does anybody have experience with any of these inexpensive units....I believe most come from India but I could be wrong. Any comments on some of these? Many people have interest in learning to use a sextant or for that matter could use one as a backup but cannot afford big bucks for something with pedigree papers.

Foggy

pure Junk foggy. junk. A sextant is a precision instrument with close tolerances and requires accuracy of build. if you want a cheap learner model, buy a plastic sextant.

I own a Astra IIIB , I like it, Id have bought a Freiberger but too expensive. Ensure any second hand sextant does have the frame out of alignment as a result of being dropped.
Dave

S/V Alchemy · 23-01-2012, 17:56

Foggysail, those are the sort of "instruments" you hang over the YC bar. They are largely decorative, although C. Columbus might have found a use for them.

There are very few cheap sextants on eBay. You will very, very occasionally find an old model at a garage sale or yard sale if an old sailor has passed on and the grandkids don't have a clue, but that's a long shot. I've been looking for a ship's clock (preferably the 24 hour style with an eight-day windup) for some time. I can get one for retail, sure, but who wants to pay retail?

foggysail · 23-01-2012, 18:05

You're right Dave, who wants to pay retail! Thanks for responding to my question--

Foggy

naloupe · 13-12-2014, 06:38

looking for an Astra IIIB for my son for Christmas, but I know the Tamaya is a good instrument too. Can you give me the contact for that one since you didn't buy it? naloupe@gmail.com
Thanks a bunch

rognvald · 13-12-2014, 10:27

Pau,
It has been my experience that most people buy a sextant, learn to use it and relegate it to their closet after a short while. My suggestion is to buy a Davis Mark 25 plastic sextant and if you're still using it regularly after a year of sailing and believe you cannot live without one, upgrade to a metal sextant. I still have my Mark 25 after 20 years and it works perfectly. We only use it when cruising fulltime and if you can get within 2 miles of a GPS fix you're doing well. When I used it daily, I could consistently get within 1 mile on a 3 star fix and a noon sun sight. Today, they have computers to do the math which is a major source of computational errors--especially when your tired. Think about it. There are more sextants sitting in closets and above nautical bars(as mentioned above) than you'd believe. Good luck and good shooting.