Search found 673 matches
- Thu Nov 03, 2011 4:50 pm
- Forum: Frequently Asked Questions (FAQs)
- Topic: FAQ: How can I hook a microscope objective to my camera?
- Replies: 98
- Views: 523697
Re: FAQ: How can I hook a microscope objective to my camera?
Nikon D90 ? Will not meter. D40, D40x, D60, D3000, D3100, D70, D80, D90, D5000, D5100, D100 will not meter. D200, D300, D300s, D7000, D700, D3, D3s, D3x will meter But as I said, you are in mode M either way so the lack of metering is not really a problem and you are better to judge the lighting fr...
- Thu Nov 03, 2011 9:57 am
- Forum: Frequently Asked Questions (FAQs)
- Topic: FAQ: How can I hook a microscope objective to my camera?
- Replies: 98
- Views: 523697
Re: FAQ: How can I hook a microscope objective to my camera?
[ I am not taking in account the "chipped" adapter that accepts M42x1 threaded optics on the lens side, and presents an interface to the camera. It seems that for Nikon this is less suitable and not really needed. I have read that some Nikon bodies don't meter without a chip while others like D300 ...
- Sun Oct 23, 2011 2:09 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Vignetting
- Replies: 25
- Views: 9006
Those lenses have quite a reputation and seem to be rather cheap used. Not bad for something that has essentially remained unchanged for about 30 years. Any reason to differentiate between the AI and the AI-s? (or even the pre-AI version) The differences between AI and AIS mainly apply to Nikon fil...
- Fri Oct 21, 2011 6:24 am
- Forum: Equipment Discussions
- Topic: Campden micro-positioner
- Replies: 1
- Views: 1209
- Wed Oct 12, 2011 8:52 am
- Forum: Equipment Discussions
- Topic: Sensor Dust and Magnification
- Replies: 27
- Views: 5212
Might it mean that the sensor plane is not exactly parallel to the lens mount, but is slightly tilted?rjlittlefield wrote:So it sticks to the sensor? Now that is interesting. I don't know what it means, but it sure is interesting!
Edit: no, because photos with no optics also show colour shifts.
- Sat Oct 08, 2011 1:28 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Stacking step for microscope objective
- Replies: 5
- Views: 2528
- Sat Oct 08, 2011 11:31 am
- Forum: Equipment Exchange
- Topic: SOLD: Zeiss MP100/2.8 (C/Y)
- Replies: 6
- Views: 10163
If you will pardon the intrusion, it may be worth pointing out a couple of things about this lens. Firstly, the Contax/Yashica (C/Y) mount can be easily used on Canon, and I believe Pentax, digital SLR while retaining infinity focus and without additional optics, as the register distance of C/Y is g...
- Thu Oct 06, 2011 2:05 pm
- Forum: Equipment Discussions
- Topic: Windows 7 Magnifier Tool
- Replies: 11
- Views: 2422
- Thu Oct 06, 2011 1:45 pm
- Forum: Equipment Discussions
- Topic: Long CA effect on apparent color
- Replies: 9
- Views: 2931
I am assuming this is due to Long CA since the Apochromatic lenses I own don't do this at all. They do do it, in fact. Don't get me wrong, I own apochromatic lenses and love using them but they are merely better, not perfect. They exhibit the same effect but to a lesser degree (and affecting differ...
- Thu Oct 06, 2011 1:42 pm
- Forum: Equipment Discussions
- Topic: Long CA effect on apparent color
- Replies: 9
- Views: 2931
Re: Long CA effect on apparent color
I've noticed some lenses have a strong Long CA characteristic that affects the apparent color of the image. Yes, it does. Several lenses I own show this effect. The color shift on some is significant enough that it changes the effective color temp / white balance. Am I interpreting these results co...
- Thu Oct 06, 2011 1:26 pm
- Forum: Equipment Discussions
- Topic: Long CA effect on apparent color
- Replies: 9
- Views: 2931
- Thu Oct 06, 2011 1:22 pm
- Forum: Equipment Discussions
- Topic: Small Aperture To Overcome Spherical Abberation
- Replies: 2
- Views: 1100
So, the model 06A then? http://www.adaptall-2.org/lenses/06A.html (does not display in Firefox for some reason). In general, stopping down selects those light rays which have passed through more central (and thus, better corrected) portions of each lens element. However, stopping down to f/11 or f/1...
- Thu Oct 06, 2011 1:02 pm
- Forum: Equipment Discussions
- Topic: Windows 7 Magnifier Tool
- Replies: 11
- Views: 2422
I used this on occasion, but it always really messed up the locations of the icons on my desktop when I exited it. (And I've got a bunch of them!). So I stopped using it, too annoying. Do you find it "messes" with your desktop icon organization? Was this on Windows 7 or an earlier version? I'm usin...
- Thu Oct 06, 2011 1:00 pm
- Forum: Equipment Discussions
- Topic: Windows 7 Magnifier Tool
- Replies: 11
- Views: 2422
- Thu Oct 06, 2011 12:56 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Sensor dust - something to be worried about?
- Replies: 13
- Views: 2607
Hi First, welcome to the forum. Second, be gentle for the non-experts, what is a tachinid exactly? Thirdly, sensor dust. A few spots are to be expected on any SLR as the inevitable result of changing lenses. They are in general nothing to worry about. SLRs which feature sensor cleaning can clean the...