what is minimum focusing distance?
398289
From what I read it it 59.1 incheshttp://www.bhphotovideo.com/c/product/549247-REG/Sigma_728101_120_400mm_f_4_5_5_6_DG_OS.html
398290
about 5 ft. the only way you can get closer is with a extension tube or close up lens. it would be hard to find 77mm close up lens so you might have to get step down ring say from 77 to 72mm. you might check into an close-up lens nikon 5t or any other brand they screw into the front of the lens which won`t have any lightloss. extension tubes install between camera and lens get the mount for your camera.you will have light loss with extension tubes 1-2 stops. also with the close up lens or extenstion tubes you will not be able to focus out to infinity.
398291
minimum focus is less than 5 feet, seems about 57 inches or maybe as little as 52, I cannot remember. I have occasionally used it for closeups of flowers quite well
398292
From what I read it it 59.1 inches http://www.bhphotovideo.com/c/product/549247-REG/Sigma_728101_120_400mm_f_4_5_5_6_DG_OS.html
398293
Product Features and Technical DetailsStyle: DG OS Lens for Nikon Digital SLR CamerasProduct Features Front & Rear Caps Lens Hood Tripod Collar Case StrapTechnical Details Brand Name: Sigma Model: 728-306 Lens Type: telephoto Mounting Type: Nikon Dgital SLR Minimum focal length: 120 millimeters Maximum focal length: 400 millimeters Minimum Focal Range: 59.1 inches Maximum Aperature Range: f/4.5-5.6 Camera Magnify Power: 1:4.2 Lens System Special Functions: Zoom // Tele Focus Type: manual-and-auto-focus Real Angle Of View: 20.4 Weight: 3.85 pounds Item Display Diameter: 92.5 millimeters Length: 8 inches Product Features and Technical DetailsStyle: DG OS Lens for Nikon Digital SLR CamerasProduct Features Front & Rear Caps Lens Hood Tripod Collar Case StrapTechnical Details Brand Name: Sigma Model: 728-306 Lens Type: telephoto Mounting Type: Nikon Dgital SLR Minimum focal length: 120 millimeters Maximum focal length: 400 millimeters Minimum Focal Range: 59.1 inches Maximum Aperature Range: f/4.5-5.6 Camera Magnify Power: 1:4.2 Lens System Special Functions: Zoom //... » Read More Product Features and Technical DetailsStyle: DG OS Lens for Nikon Digital SLR CamerasProduct Features Front & Rear Caps Lens Hood Tripod Collar Case StrapTechnical Details Brand Name: Sigma Model: 728-306 Lens Type: telephoto Mounting Type: Nikon Dgital SLR Minimum focal length: 120 millimeters Maximum focal length: 400 millimeters Minimum Focal Range: 59.1 inches Maximum Aperature Range: f/4.5-5.6 Camera Magnify Power: 1:4.2 Lens System Special Functions: Zoom // Tele Focus Type: manual-and-auto-focus Real Angle Of View: 20.4 Weight: 3.85 pounds Item Display Diameter: 92.5 millimeters Length: 8 inches « Show Less
839393
Close in focus is a problem with that lens. I have often found that a problem. The minimum focus distance depends on the zoom ratio selected. At the 28mm setting, the camera will focus down in the macro range (marked in orange on the focus distance ring) and that gets you to about 4 feet. The lowest focus distance marked in white is 2 meters, and that applies as the minimum focus distance with the 200 mm zoom setting. In between it varies proportionately to the zoom setting as to what your minimum focus distance is. In short, if you do a lot of work close in, this lens is not a good choice. I have no experience with extension tubes.
779770
Attach to the lens you desire, then if using the 500D you will need to be about 15-20" from subject to achieve focus, if using 250D you will need to be about 6-8" from subject to focus...Auto focus will work within the distances I gave you, and sometimes vary slightly...
797773
So this is a major concession in comparison with much less expensive cameras' focusing distances of one to two inches. Anyone with ideas as to why this is so. I used a Nikkormat with a Nikon macro lens for many years and have considered a Nikon digital body to allow continued use of the lens. Anyone with any thoughts on marrying such different technologies?
2171693
2.8 is the maximum aperture at minimum zoom. I no longer own thing lens. But I believe it goes to f22. It is either 16 or 22.
1077786
At full, 42X zoom (1,000mm), the focus distance is about 8'. But I find that if I take the zoom down just a little to 39x (928mm), I can get significantly closer. Maybe 4 or 5 feet. This may give you better results at a distance. Also, at long zoom, it is harder for the autofocus system to focus. Bright light is required.
1069237
Sharper by a discernible amount. Lighter! Faster focusing. 70-300 maintains a significant advantage in close focusing though. I have both lenses. If you want to shoot bugs and flowers, 70-300 is the way to go. Birds, sports, the moon, 75-300.
595082
I can focus down to about 1/2" from the lens with very good clarity. The problem may be your ability to get good lighting on the object. I do not know how small your object is. I used a AAA battery as an object and got good focus. The camera does have a macro function for close shots.I recommend backing off about 6-8 inches and using a little zoom for a close up. Auto focus produced a good image on my camera.
64568
According to the specifications printed on the side of the box, the close focus for these binoculars is 26ft./8m. Hope this helps.
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.
1875333
This is strictly for macro. Focusing on anything that isn't at the closest focal point is impossible. It is also recommended that you use a lens with a shorter zoom level. This is basically incompatible with my 250mm. I can only imagine how much worse it is with a 400mm.
1951962
With the lowest magnification you are about 8 to 10 inches. As you move up in magnification you have to get closer.
1199728
The company claims:19 feet(6.3 yards)Minimum Focus DistanceIt works for me at 10 yards
1237405
I think yes. I'm not positive because I haven't measured subject distances, but have gotten sharp focus at 3-5 cm.
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
1942667
I use this 500 mm lens with a Nikon D600. The range of focus is from about 7 feet to infinity.
464946
Hi John,The close focus distance of the MiniMight Monocular is about 10 feet.If you have any other questions or concerns, please contact our customer service department at 631-963-5000 or by email at info@carson.com