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Sometimes we all become too interested in the camera body because that is where most of the gadgets are. But it is the lens that makes the picture and most often the lens has a more direct influence on the eventual image quality 'output'. If economy is a consideration, you should consider buy a less expensive camera body rather than less expensive lenses. If you buy a SLR camera with only one lens is also not logical because you might as well buy a cheaper camera with a fixed, non-interchangeable lens like a P&S. But modern lenses has such fantastic features such as high power zoom with previously unimaginable zoom range which actually makes a single-lens-do-all photographic system viable. All those messages posted on the variuos Message Boards for SLR Models are not short of interesting comment and remarks on lenses. Well, not to confuse others who are just interested in cameras, I thought there is a neccessity for a separate Message Board for those who are interested in discussion on various issues on lenses as well..
Unlike the Message designed for camera of various makes, this MB is one-for-all type and thus I hope this section can be maintained as a peaceful zone. The maintainer of this site reserved all the right to censor or even delete any un-related, excessively hostile messages posted herein. This site is specifically created just for lenses. If your intention is to dispose your optics or looking for any used unit, please use the Free Trade Zone site instead. The Photography In Malaysia has no Guestbook on its own, because it is an integral part of the MIR site. But if you want to leave a note on your experience visiting this site, you may use the MIR's MIR Guestbook | instead.
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Url : http://
Date : 02:02 AM Friday 26 May, 2006
Craig: there are ND (neutral density, aka grey) filters that can be used to decrease the light reaching the film, to allow to use very long exposures even if there is a lot of light. As Ken said, films usually have no a linear response with very long exposure, and some tests are usually necessary.2. From : Jack Gabor (Gaborj@Fyi.Net)
Url : http://
Date : 09:29 PM Thursday 25 May, 2006
Hello,
I own an older Nikon FTN film camera with many lenses (which I love & it still works great). I am interested in purchasing a new Nikon D50 digital camera. Can I use my old lenses with this new camera? What modifications might I need?
Thanks3. From : rick (rick_oleson@yahoo.com)
Url : http://rick_oleson.tripod.com
Date : 06:54 AM Thursday 25 May, 2006
Hi Jon:
You can find just about every lens register in the world HERE.
The Nikon register is 46.5mm.
The mount bayonet is the same for all Nikon SLR lenses, manual and autofocus, but there are differences in communication couplings that can limit cross-compatibility. There are Non-AI, AI, AIS, and two AF variations that I'm aware of... one of which is fully compatible with manual focus cameras and one which is not. There are probably more than that in the AF & digital area but I'm not fully up to date on them. These details may not be of any importance to your application as they deal with aperture control and the communication of aperture data to the light meter.4. From : Jon Maxwell (jonmax@cookeoptics.com)
Url : http://www.cookeoptics.com
Date : 06:42 PM Wednesday 24 May, 2006
(1) I really like your very professional website.
(2) Help! I'm trying to build a Nikkor lens into a piece of test equipment, but I can't find the standard Nikon F lens flange to film plane dimension on any website anywhere. Can anyone help with a value, or a reference to this information?
(3) And a supplementary question: Do Nikkor digital lenses use the standard Nikon F mount?
5. From : Ken Durling (kdurling@comcast.net)
Url : http://
Date : 12:58 PM Wednesday 24 May, 2006
A little "light" reading, just from a quick Google:
http://home.earthlink.net/~kitathome/LunarLight/moonlight_gallery/technique/reciprocity.htm
Note that color can also shift.
Ken
6. From : Ken Durling (kdurling@comcast.net)
Url : http://
Date : 12:49 PM Wednesday 24 May, 2006
Craig -
Basically that's right, for shorter exposures. (Bear in mind that f/4 at 1 min is very low light, so f/11 would really need a long dose of light) However, most films exhibit something called "reciprocity failure" at the exposure lengths you're talking about. (There maybe some specialized films that don't, I'm not sure) Reciprocity is the inverse relationship of smaller aperture/longer shutter you're talking about, and at long exposure times the relationship is often no longer linear, so it's not strictly a "failure," just a change that you have to take into account when calcualting exposure. You would need to consult the data sheets for the specific film you';re shooting, and often it's printed on the inside of the box it comes in or you can find them online.
Ken7. From : Craig Zander (craig_zander@yahoo.com)
Url : http://
Date : 06:25 AM Wednesday 24 May, 2006
Question about apertures and long exposures.
I don't know a lot about apertures, only that the amount of light that is let in is either halved or doubled with each f-stop.
My question is this:
I've seen some very interesting pictures that this guy took of the shore line in the morning, using long exposures. In most of his shots, he had the shutter opened for 1 minute at f-4, using 100 speed film. So, using that logic, if I use 100 speed film, and I have my aperture set at f-11, does that mean my exposure time (under the same morning conditions) would run at 8 minutes??? That seems awfully long.
Is there something I'm missing about aperture ratios, or am I correct in that each f-stop smaller, you double the amount of time for exposure?
Thanks so much for anyone and everyone's help.8. From : Ken Durling (kdurling@comcast.net)
Url : http://
Date : 09:31 AM Tuesday 23 May, 2006
Ataribob - That lens was released in 1993. Check here:
http://www.canon.com/camera-museum/camera/lens/f_lens.html
Ken9. From : Ataribob (Ataribob@bellsouth.net)
Url : http://
Date : 07:48 AM Tuesday 23 May, 2006
I have a Canon Zoom Lens EF 28-70 mm 1.28. But I don't see it listed in the lens section here.Is it a newer lens or not as many made10. From : Ken Durling (kdurling@comcast.net)PAGE | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 145 | 146 | 147 | 148 | 149 | 150 | 151 | 152 | 153 | 154 | 155 | 156 | 157 | 158 | 159 | 160 | 161 | 162 | 163 | 164 | 165 | 166 | 167 | 168 | 169 | 170 | 171 | 172 | 173 | 174 | 175 | 176 | 177 | 178 | 179 | 180 | 181 | 182 | 183 | 184 | 185 | 186 | 187 | 188 | 189 | 190 | 191 | 192 | 193 | 194 | 195 | 196 | 197 | 198 | 199 | 200 | 201 | 202 | 203 | 204 | 205 | 206 | 207 | 208 | 209 | 210 | 211 | 212 | 213 | 214 | 215 | 216
Url : http://
Date : 12:30 PM Monday 22 May, 2006
Craig - Sorry I can't offer an empirical comparison, but I did own the nFD 28/2.8 and thought it was a fine lens. I have heard that the f/2 version is better, but I doubt it was dramatically better, as the f/2.8 version is very well regarded. 28mm is not one of my favorite prime FLs, so the extra couple of hundred bucks wouldn't be worth it *to me*, given how good the base lens is. Of course YMMV. Ken
Maintainers for Various Optic Message Board:
Rick Oleson (rick_oleson@yahoo.com); Greg Chappell (gregmchappell@nww.net), Luigi D. Sandon (cp@sandon.it); Ken Durling (kdurling@kendurling.net); Robert Glenn Middleton (the_redd_groyne@hotmail.co.uk)
In memory of Mr. Ken Durling (1951-2007)
who had served this board for the last 8-10 years with al his love and passion on photography.| Post a Message to the Message Board |
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