What is the minimym forcus distance?
1368941
Mars. With this little gizzmo you can't really focus on anything on planet Earth. I threw mine away five minutes after getting it. With optics, you get what you pay for! Although $6 reading glasses aren't bad...
1368942
I could focus at 7 feet with my left eye which can focus 1x from 8 inches to infinity.
1368943
I did not accurately measure this but from my observation using the unit minimum distance that it will focus is about 8-10 feet. It will not focus closer than that.
1368944
Fm ur eye to the scope 1/2-1". Hope this helps. But its a good scope I have owned a few Bushnell ,simmons, rugged exposure etc. ....
354491
It says Macro in its name, so it should be able to focus on short distance. However for better performance use reduction. 36mm worked good for me - like microscope
381969
2nd answer. If you mean the closest distance you're able to focus at? I can only guess at about 15 to 20 feet. If you mean the closest distance you can calculate by using the mildot system I would again guess as close as you can get a clear focused picture. Mine gives me a very clear picture fifty yards and out but I could not honestly tell you the minimum useful distance. KT
2168697
visual estimate from the one I have mounted: greater than 5 feet, most likely less than 6 feet.
973145
Its very small, about 30cm*20cm. If you are looking for some thing useful, not recommended :(
2204239
The shortest is roughly 14 inches and the longest is roughly 30 inches. This is not counting the locking mechanism of the plastic buckle.
355230
The one that I received is 10FT. Amazom asked me to respond to your question.
910740
the one I purchased wasn't worth the money. It was thin and short. I put a description in a review on the product page. Here it is: http://www.amazon.com/review/R373XJZKBI3A9R/ref=cm_cr_pr_perm?ie=UTF8&ASIN=B005FU4XBW&linkCode=&nodeID=&tag=
2103644
Iso wont make a difference. You will need to do some math to calculate your "effective F stop". Ne = N(1+M/p)N = f-numberNe = effective f-numberM = magnification = extension from infinity focus / focal lengthp = exit pupil diameter / entrance pupil diameter
2098659
what is the uninflated length? (min) and the inflated lenght (max) eye to eye
25821
Less than an inch. It's very accurate and if you can use it, well worth the money.
833386
It is a focus limiter switch. It refers to the minimum distance from which the lens/camera will search for focus. For instance, if you are trying to focus on a distant object, but have nearer objects (such as vegetation) in the way, setting the switch to 1.6m tells the system not to focus on anything closer than 1.6m. Also, if you know your subject is going to me more than 1.6 meters away, moving the switch to 1.6 reduces the distance range over which the lens hunts for focus. The minimum focus distance is actually 0.9 meters, not 0.09 meters.
1111378
This is an approximation, but I would say the smallest is about 1mm and each brush is maybe double in size.
862035
I don't have a micrometer, but it looks to be about 1.6mm I think you meant millimetres and not inches (?)
1641519
I can't seem to find it, but it's pretty small if I remember correctly -- 3 to 4 inches.
1045142
Hi, I recommend you to check the Optoma website distance calculator. http://www.optomausa.com/support/calculator/
531597
This lenses is meant for distance - I believe min is 12'. If you're looking for everyday photos in the home or close distance you don't need this lens. This lens is great for landscape, wildlife etc...