We don't think you can do it with that information.
'f-stop' = (focal length of the objective lens) divided by (its diameter)
Magnification of the scope = (focal length of the objective) divided by (focal length of the eyepiece)
Looks like in order to calculate the 'f-stop', you need to estimate or measure the focal length
of either the objective or the eyepiece.
Here's an idea: If you can temporarily separate the objective from the tube, use the
objective to focus an image of the sun on the sidewalk. (Not on anything flammable.)
Measure the distance from the lens to the sharpest image.
With the 'object' at infinity, the image is at the focal length.
The small telescope (and sometimes it hardly has any magnification at all) is a "spotting scope" to assist in orienting the larger telescope.
this chemical is used to release stuck pipes.Two types of spotting fluids ,spotting fluid (w) and spotting-fluid (nw)
There are many places where one can purchase spotting telescopes. Spotting telescopes can be purchased from most retailers that specialize in telescope products. One may also use online retailers such as Amazon to purchase these telescopes.
A SPOTTING TILE
it has unusual spotting's of animals and some unique vegetation
For a 15-45x60 model, then, you have a spotting scope with a zoom magnification range of 15-45x with a front lens of 60mm diameter.
The small telescope (and sometimes it hardly has any magnification at all) is a "spotting scope" to assist in orienting the larger telescope.
From what I have been reading about implantation bleeding I would say that the dark spotting is that. I would say that you should estimate a week before the dark spotting and that is when you got pregnant.
Aperture, Magnification and Anti-Reflective Coatings. There are numbers on the scope that tell you the specific strength of these features. This is important as to whether you are viewing long or short distances.
why am i spotting after my period
Spotting the bird was hard
this chemical is used to release stuck pipes.Two types of spotting fluids ,spotting fluid (w) and spotting-fluid (nw)
On spotting the suspect the police arrested him.
i have my tubes tied and am spotting feeling nauseated
brown spotting is just what is sounds like. old blood is brown. spotting describes the result of drops of blood on a surface. thus, old blood drops=brown spotting.
Spotting will continue for 2 to 8 weeks.
no