Will,
Thanks.
Carolyn
That's a heck of a buy.
Bob
Sent from my iPhone
On Jan 3, 2010, at 10:22 PM, "Will Blozan" <[email protected]>
wrote:
> Carolyn, Bob,
>
> Amazon has them for $275:
>
> http://www.amazon.com/Nikon-Forestry-550-Hypsometer-Rangefinder/dp/B001J0QJ2S
>
> And Buy.com for $273:
>
> http://www.buy.com/retail/product.asp?sku=210913827&listingid=49305260
>
> Will F. Blozan
> President, Eastern Native Tree Society
> President, Appalachian Arborists, Inc.
>
> "No sympathy for apathy"
> From: [email protected] [mailto:[email protected]]
> On Behalf Of Carolyn Summers
> Sent: Sunday, January 03, 2010 10:16 PM
> To: [email protected]
> Subject: Re: [ENTS] Suunto vs. iPhone
>
> It’s ok, fortunately I was already sitting down.
> --
> Carolyn Summers
> 63 Ferndale Drive
> Hastings-on-Hudson, NY 10706
> 914-478-5712
>
>
>
> From: <[email protected]>
> Reply-To: <[email protected]>
> Date: Mon, 4 Jan 2010 03:12:57 +0000 (UTC)
> To: <[email protected]>
> Subject: Re: [ENTS] Suunto vs. iPhone
>
> Carolyn,
>
> It is close to $500.00. Don't faint.
>
> Bob
>
> ----- Original Message -----
> From: "Carolyn Summers" <[email protected]>
> To: [email protected]
> Sent: Sunday, January 3, 2010 9:07:38 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [ENTS] Suunto vs. iPhone
>
> Ok, that’s what I need. I’m afraid to ask – but – here goes
> – what’s the price tag?
> --
> Carolyn Summers
> 63 Ferndale Drive
> Hastings-on-Hudson, NY 10706
> 914-478-5712
>
>
>
> From: <[email protected]>
> Reply-To: <[email protected]>
> Date: Sun, 3 Jan 2010 20:19:14 +0000 (UTC)
> To: <[email protected]>
> Subject: Re: [ENTS] Suunto vs. iPhone
>
> Carolyn,
>
> The Nikon Forestry 550 does it all. It is also fairly pricey. You
> select the height mode, shoot the crown, shoot the base, and read
> the calculated height from the LED. No math. No fuss. No bother.
>
> Bob
>
> ----- Original Message -----
> From: "Carolyn Summers" <[email protected]>
> To: [email protected]
> Sent: Sunday, January 3, 2010 2:35:23 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [ENTS] Suunto vs. iPhone
>
> Are there any tree-height measuring devices that do the math for
> you? I
> never took trig.
> --
> Carolyn Summers
> 63 Ferndale Drive
> Hastings-on-Hudson, NY 10706
> 914-478-5712
>
>
>
> > From: Beth <[email protected]>
> > Reply-To: <[email protected]>
> > Date: Tue, 22 Dec 2009 15:57:09 -0800 (PST)
> > To: ENTSTrees <[email protected]>
> > Subject: [ENTS] Suunto vs. iPhone
> >
> > A Small Comparison between Suunto and iPhone Clinometers
> >
> > Since some of us now have iPhones and have downloaded the
> > Clinometer application I thought that someone needs to compare the
> > iPhone to the Suunto clinometer. Today I took 14 measurements each
> > while sitting on my couch to a ceiling heating/AC vent. I then
> > measured my eye height, the ceiling height, and the distance from my
> > eyes to the tape measure hanging from the vent as a plumb bob.
> These
> > measurements were: ceiling height = 96², height of the eyes = 38²,
> and
> > distance to the vent plum bob = 219². I used the measurements to
> > calculate the angle I was trying to measure with the Suunto and
> > iPhone. Before taking my measurements I calibrated my iPhone
> > clinometer according to the instructions. I also had the following
> > settings: Fast approximation-on, Beep on lock-on, wait for lock
> > accuracy of + 0.1o- all the way to the left (+ 0.1o), disable auto-
> > lock-off, and 3D glass effect-on.
> >
> > The first thing that I do in order to calculate the angle A was to
> > calculate the distance from my eye to the ceiling; 96²-38²= 58².
> >
> > Since Tan A = a/b, we can rearrange the equation to find A by
> dividing
> > both sides by Tan. Since 1/Tan =Arc Tan the equation is A = (a/b)
> Arc
> > Tan. Filling in this equation with the data we get A = (58/219) Arc
> > Tan or A = 14.8336707057. Taking signifiginte numbers in mind I am
> > going to say the angle is 14.8o. (Note: I calculated this after
> > gathering the data as not to influence the clinometer data)
> >
> > Now for the clinometer data:
> > Suunto iPhone Suunto iPhone
> > 15.5 15.2 14.5 15.4
> > 15.0 14.9 15.0 15.2
> > 15.0 15.1 14.5 15.2
> > 15.0 14.1 14.5 15.1
> > 15.0 15.0 14.5 15.7
> > 15.0 15.2 15.0 15.5
> > 14.5 15.1 14.5 15.2
> > The means were 14.8 and 15.1 for the Suunto and iPhone respectively
> > with standard deviation of 0.31 and 0.35.
> >
> > The one thing I noticed in my raw data is with the Suunto my highest
> > and lowest angles were 15.5 and 14.5 whereas with the iPhone they
> were
> > 15.7 and 14.1. I can think of at least two reasons why. 1) I have
> > more experience with the Suunto than I have with the iPhone and 2)
> the
> > Suunto has a line to help repeatly ³hit² the same spot whereas the
> > iPhone you are just looking down one side of the phone.
> >
> > I also noticed after calculating the angle (14.8) the Suunto average
> > was closer than the iPhone¹s (14.8 vs. 15.1). Now is 0.3o differe
> nce
> > significant? Bob has more experience with the Suunto than I do
> and he
> > has stated in the past that can read it to the nearest 1Ž4 o. I m
> yself
> > can only read it to the nearest 1Ž2o. Given this I believe that a
> > difference of 0.3o is.
> >
> > How can the iPhone be improved? If one would add a sighting
> device on
> > to the iPhone this could help ³hit² the same spot repeatly. Obviou
> sly
> > this can not be same one that is used in the Suunto¹s, looking thr
> ough
> > it with an optical illusion. Maybe a tiny gun sighting built into
> the
> > volume and/or ringer buttons on the left side. I think someone
> > thought of this earlier. With the sight and practice I believe one
> > could the angle down to the nearest tenth of a degree. With the
> > Suunto one can only really estimate anything less than 1 degree.
> > Beth
> >
> > --
> > Eastern Native Tree Society http://www.nativetreesociety.org
> > Send email to [email protected]
> > Visit this group at http://groups.google.com/group/entstrees?hl=en
> > To unsubscribe send email to [email protected]
>
>
> --
> Eastern Native Tree Society http://www.nativetreesociety.org
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>
> --
> Eastern Native Tree Society http://www.nativetreesociety.org
> Send email to [email protected]
> Visit this group at http://groups.google.com/group/entstrees?hl=en
> To unsubscribe send email to [email protected]
>
>
> --
> Eastern Native Tree Society http://www.nativetreesociety.org
> Send email to [email protected]
> Visit this group at http://groups.google.com/group/entstrees?hl=en
> To unsubscribe send email to [email protected]
>
> --
> Eastern Native Tree Society http://www.nativetreesociety.org
> Send email to [email protected]
> Visit this group at http://groups.google.com/group/entstrees?hl=en
> To unsubscribe send email to [email protected]
>
> --
> Eastern Native Tree Society http://www.nativetreesociety.org
> Send email to [email protected]
> Visit this group at http://groups.google.com/group/entstrees?hl=en
> To unsubscribe send email to [email protected]
> --
> Eastern Native Tree Society http://www.nativetreesociety.org
> Send email to [email protected]
> Visit this group at http://groups.google.com/group/entstrees?hl=en
> To unsubscribe send email to [email protected]
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