| View previous topic :: View next topic |
| Author |
Message |
clarnibass
Joined: 05 Aug 2011
Posts: 30
|
 Posted: Tue Nov 27, 2012 7:52 am Post subject: Nikon micro |
 |
|
clarnibass wrote:
Hi
Does nayone the distance from end of the lens to subject of the Nikon 55mm micro at 1:1 magnification when combined with the PK-13 tube? Same for the micro 105mm when combined with its tube (I think its PN-11)?
Thanks! |
|
| Back to top |
|
 |
kds315*
Joined: 12 Mar 2008
Posts: 16634
Location: Weinheim, Germany
Expire: 2021-03-09
|
| Posted: Tue Nov 27, 2012 8:09 am Post subject: |
|
|
kds315* wrote:
optical rule is that at 1:1 magnification, 2 x f is distance, so it is approximately 110mm for 55mm and 210mm for 105mm (single lens approximation - take middle of lens, not lens front)
_________________
Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
|
|
| Back to top |
|
|
danfromm
Joined: 04 Sep 2011
Posts: 585
|
| Posted: Tue Nov 27, 2012 9:57 pm Post subject: |
|
|
danfromm wrote:
| kds315* wrote: |
| optical rule is that at 1:1 magnification, 2 x f is distance, so it is approximately 110mm for 55mm and 210mm for 105mm (single lens approximation - take middle of lens, not lens front) |
Quite correct, approximately, as you wrote for the 55 and 105/5 MicroNikkors. Not quite right for the 105/2.8 MicroNikkor, which changes focal length as it focuses closer. At its close focusing limit (1:2 on its own mount, 1:0.88 on the PN-11) its focal length is 88 mm, so for it the distance is 176 mm, not 210 mm, at 1:0.88. |
|
| Back to top |
|
|
clarnibass
Joined: 05 Aug 2011
Posts: 30
|
| Posted: Wed Nov 28, 2012 5:22 am Post subject: |
|
|
clarnibass wrote:
Thanks.
Do you know what the distance is from the end of the lens to the subject? I'm not sure where those FLx2 measurements are measured from. |
|
| Back to top |
|
|
kds315*
Joined: 12 Mar 2008
Posts: 16634
Location: Weinheim, Germany
Expire: 2021-03-09
|
| Posted: Wed Nov 28, 2012 8:28 am Post subject: |
|
|
kds315* wrote:
The approximation is from middle of the lens, not lens front.
_________________
Klaus - Admin
"S'il vient a point, me souviendra" [Thomas Bohier (1460-1523)]
http://www.macrolenses.de for macro and special lens info
http://www.pbase.com/kds315/uv_photos for UV Images and lens/filter info
https://www.flickr.com/photos/kds315/albums my albums using various lenses
http://photographyoftheinvisibleworld.blogspot.com/ my UV BLOG
http://www.travelmeetsfood.com/blog Food + Travel BLOG
https://galeriafotografia.com Architecture + Drone photography
Currently most FAV lens(es):
X80QF f3.2/80mm
Hypergon f11/26mm
ELCAN UV f5.6/52mm
Zeiss UV-Planar f4/60mm
Zeiss UV-Planar f2/62mm
Lomo Уфар-12 f2.5/41mm
Lomo Зуфар-2 f4.0/350mm
Lomo ZIKAR-1A f1.2/100mm
Nikon UV Nikkor f4.5/105mm
Zeiss UV-Sonnar f4.3/105mm
CERCO UV-VIS-NIR f1.8/45mm
CERCO UV-VIS-NIR f4.1/94mm
CERCO UV-VIS-NIR f2.8/100mm
Steinheil Quarzobjektiv f1.8/50mm
Pentax Quartz Takumar f3.5/85mm
Carl Zeiss Jena UV-Objektiv f4/60mm
NYE OPTICAL Lyman-Alpha II f1.1/90mm
NYE OPTICAL Lyman-Alpha I f2.8/200mm
COASTAL OPTICS f4/60mm UV-VIS-IR Apo
COASTAL OPTICS f4.5/105mm UV-Micro-Apo
Pentax Ultra-Achromatic Takumar f4.5/85mm
Pentax Ultra-Achromatic Takumar f5.6/300mm
Rodenstock UV-Rodagon f5.6/60mm + 105mm + 150mm
|
|
| Back to top |
|
|
clarnibass
Joined: 05 Aug 2011
Posts: 30
|
| Posted: Wed Nov 28, 2012 11:59 am Post subject: |
|
|
clarnibass wrote:
Thanks. Yes, I understood that in your previous post. I meant I don't know exactly where in the middle (what is considered the middle?). I don't know the length of the lens, though I guess I can find it. But since with this lens at 1:1 every cm (or even less) matters, I have to know exactly from where in the middle to calculate, does it include the entire lens, what about the overlap of the mount, how approximate is it, etc.? I don't know how to use that to calculate the distnace from the end of the lens, which is what I'm trying to find. Maybe you know? Maybe someone here has the lens anc can check please?
Thanks again |
|
| Back to top |
|
|
danfromm
Joined: 04 Sep 2011
Posts: 585
|
| Posted: Wed Nov 28, 2012 12:29 pm Post subject: |
|
|
danfromm wrote:
The front nodal point is approximately at the diaphragm. Approximately. |
|
| Back to top |
|
|
GaborF
Joined: 06 Nov 2012
Posts: 35
|
| Posted: Wed Nov 28, 2012 1:05 pm Post subject: |
|
|
GaborF wrote:
Attaching an image taken by Micro-Nikkor 55mm 3.5 without extension tubes (not max. magnification I think):
Now the same 1:1 lens with tubes (it needs long shutter time):
 |
|
| Back to top |
|
|
clarnibass
Joined: 05 Aug 2011
Posts: 30
|
| Posted: Fri Nov 30, 2012 5:56 am Post subject: |
|
|
clarnibass wrote:
Thanks. Since you have the lens and the tube for 1:1, can you please check the working distance from the end of the lens at 1:1? |
|
| Back to top |
|
|
visualopsins
Joined: 05 Mar 2009
Posts: 10966
Location: California
Expire: 2025-04-11
|
| Posted: Fri Nov 30, 2012 7:06 am Post subject: |
|
|
visualopsins wrote:
I have 3.5/55 and I'll measure this for you if you tell me how long is the extension tube and I have one...
I'm curious how this measurement information will get used? Why front of lens? Aren't distances marked on lenses measured from film/sensor?
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
|
|
| Back to top |
|
|
clarnibass
Joined: 05 Aug 2011
Posts: 30
|
| Posted: Sat Dec 01, 2012 5:24 am Post subject: |
|
|
clarnibass wrote:
| visualopsins wrote: |
| I have 3.5/55 and I'll measure this for you if you tell me how long is the extension tube and I have one... |
It is the Nikon PK-13 tube 27.5mm http://www.bhphotovideo.com/c/product/37858-REG/Nikon_2653_PK_13_27_5mm_AI.html
| visualopsins wrote: |
| I'm curious how this measurement information will get used? Why front of lens? Aren't distances marked on lenses measured from film/sensor? |
Because I want to know what distance physically the end of the lens is going to be from the subject at 1:1, to see if that is too short to block my light for the specific macro photos I need. A difference of just a couple of cms can be critical and I rather not get a longer lens if I don't have to.
Thanks again |
|
| Back to top |
|
|
fuzzywuzzy
Joined: 18 Dec 2010
Posts: 1258
Location: Down East, Canada, eh?
Expire: 2013-11-30
|
| Posted: Sat Dec 01, 2012 1:06 pm Post subject: |
|
|
fuzzywuzzy wrote:
That's a great "portrait" of the moth.
_________________
I welcome C&C, editing my pics and reposting them on the forum is fine.
NEX-F3
~~~~~~~~~
CZJ Sonnar 135/4, Biotar 58/2, Pancolar 50/2, Tessar 50/2.8, Flek 35/2.8, Flek 25/4
Super Takumar 135/2.5, 135/3.5, 100/4 bellows, 50/1.4, 28/3.5
Helios 58/2, 3M-5A 500/8, Mir 20M
Vivitar Series 1 70-210 - - - - - - - - Nikkor 200/4
Rikenon 28/2.8 - - - - - - - - Zeiss 50/1.7 Planar
PB 50/2.4, 135/2.8
Yashica 50/1.9, 28/2.8, 135/2.8
Hexanon 28/3.5, 50/1.4 |
|
| Back to top |
|
|
clarnibass
Joined: 05 Aug 2011
Posts: 30
|
| Posted: Tue Dec 04, 2012 8:49 am Post subject: |
|
|
clarnibass wrote:
I eventaully found someone who had one and said it's 5cm-6cm and I decided this was far enough so I bought one. |
|
| Back to top |
|
|
visualopsins
Joined: 05 Mar 2009
Posts: 10966
Location: California
Expire: 2025-04-11
|
| Posted: Thu Dec 06, 2012 3:38 am Post subject: |
|
|
visualopsins wrote:
Storm got in the way...
I (too) measured subject 6cm from front of lens barrel (lens is recessed). Lens at maximum extension is 85mm long.
My Macro-Takumar 4/50 at 1:1 front of barrel is also 6cm...
_________________
☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮ like attracts like! ☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮☮
Cameras: Sony ILCE-7RM2, Spotmatics II, F, and ESII, Nikon P4
Lenses:
M42 Asahi Optical Co., Takumar 1:4 f=35mm, 1:2 f=58mm (Sonnar), 1:2.4 f=58mm (Heliar), 1:2.2 f=55mm (Gaussian), 1:2.8 f=105mm (Model I), 1:2.8/105 (Model II), 1:5.6/200, Tele-Takumar 1:5.6/200, 1:6.3/300, Macro-Takumar 1:4/50, Auto-Takumar 1:2.3 f=35, 1:1.8 f=55mm, 1:2.2 f=55mm, Super-TAKUMAR 1:3.5/28 (fat), 1:2/35 (Fat), 1:1.4/50 (8-element), Super-Multi-Coated Fisheye-TAKUMAR 1:4/17, Super-Multi-Coated TAKUMAR 1:4.5/20, 1:3.5/24, 1:3.5/28, 1:2/35, 1:3.5/35, 1:1.8/85, 1:1.9/85 1:2.8/105, 1:3.5/135, 1:2.5/135 (II), 1:4/150, 1:4/200, 1:4/300, 1:4.5/500, Super-Multi-Coated Macro-TAKUMAR 1:4/50, 1:4/100, Super-Multi-Coated Bellows-TAKUMAR 1:4/100, SMC TAKUMAR 1:1.4/50, 1:1.8/55
M42 Carl Zeiss Jena Flektogon 2.4/35
Contax Carl Zeiss Vario-Sonnar T* 28-70mm F3.5-4.5
Pentax K-mount SMC PENTAX-A ZOOM 1:3.5 35~105mm, SMC PENTAX ZOOM 1:4 45~125mm
Nikon Micro-NIKKOR-P-C Auto 1:3.5 f=55mm, NIKKOR-P Auto 105mm f/2.5 Pre-AI (Sonnar), Micro-NIKKOR 105mm 1:4 AI, NIKKOR AI-S 35-135mm f/3,5-4,5
Tamron SP 17mm f/3.5 (51B), Tamron SP 17mm f/3.5 (151B), SP 500mm f/8 (55BB), SP 70-210mm f/3.5 (19AH)
Vivitar 100mm 1:2.8 MC 1:1 Macro Telephoto (Kiron)
|
|
| Back to top |
|
|
clarnibass
Joined: 05 Aug 2011
Posts: 30
|
| Posted: Fri Dec 07, 2012 7:37 am Post subject: |
|
|
clarnibass wrote:
Thanks for confirming. |
|
| Back to top |
|
|
|
|
|
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
|
Search
Memberlist
Register
Profile
Log in to check your private messages
Log in
