by timojazz

Question by sloth: Which zoom lenses can I get for my Nikon D40?
I got one extra nikkor lens DX that has a range of 55-200m.
What other lens can I get for a D40.
I want one to take pictures of the night sky

thanks!

Best answer:

Answer by thankyoumaskedman
The best kind of lens for photographing the night sky would be a wide angle prime focus lens. For one thing this gives you a pretty wide aperture available. Also the focus can be manually dialed to infinity. Unfortunately the available lenses of this type will be manual focus only with the D40.
You could get by with your 18-55mm kit lens. Set the focal length to 18mm and aperture to f3.5. Find something bright enough on the horizon to lock in the autofocus to infinity. Then turn the autofocus switch to manual and avoid changing the focus setting. A shutter speed of 30 seconds will probably show very little visible star trailing at most displays, although some will be visible at 100% resolution.
Set the white balance to daylight.
The Nikon 18-200mm has a distance scale, but it is unreliable for dialing in infinity focus. The lens is not parfocal, and changes of focal length change the focus.

For very long exposures an old fashioned film camera with mechanical locking cable release could be best. In experiments that I did a few years ago with my Nikon D50 I found that at ISO 400, even with long exposure noise reduction turned on, hot pixel speckles start appearing after about 5 minutes. At 30 minutes (the maximum possible in bulb with the infrared remote) it looks like it’s raining confetti. Another thing I noticed in experiments I did upgraded to a D60 is that some subtle nebulosity seems to fail to register. For example, in a 30 second exposure under dark sky the D60 could pick up more stars than my eye could see, but the Milky Way, visible to my eye, did not show up in the digital image.

What do you think? Answer below!

Question by icecream123: What zoom does the Nikon 1 J 1 two lenses zoom kit have?
so the nikon 1 j 1 mirrorsless camera with the two lens zoom kit comes with two lenses.
Can someone tell me what the zoom is for each lens?
(I want to know what x zoom it is. Like, 3x zoom. I don’t know how to convert mm’s into x zooms)

Nikon 1 J1 (Two Lens Zoom Kit)
-NIKKOR 10-30mm f/3.5 – 5.6 VR lens
-NIKKOR 30-110mm f/3.8 – 5.6 VR lens

please please help!

Best answer:

Answer by George Y
Basic math applies here. A 10-30mm zoom is a 3x as 3x 10mm = 30mm. The 30-110mm zoom is a 3.67x because 30mm x 3.67 = 110mm. The two lenses together equal a 11x zoom

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