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zewrak
Joined: 12 Apr 2008
Posts: 831
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 Posted: Sun Aug 03, 2008 6:28 pm Post subject: |
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What wavelength of the light should one try to have? UV-A or UV-B? UV-C is out of the question I guess. 
Ive been looking at using UV-A 380-395 at 2000mcd, 50 of them leds pointing straight into the lens. Any math/light geek that could translate that into usable information? Would that be enough to light it for a few weeks?
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My Flickr - Takumar.org
PENTAX K10D, Spotmatic
Asahi Auto Takumar 85/1.8
Asahi Takumar 105/2.8 135/3.5
Asahi Super Takumar 20/4.5 50/1.4 55/1.8 85/1.9 105/2.8 135/3.5 150/4 200/4
Asahi S-M-C Takumar 35/3.5 300/4
Asahi S-M-C Macro-Takumar 50/4,100/4
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no-X
Joined: 19 Jul 2008
Posts: 265
Location: Budweiß, Czech Republic
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| Posted: Sun Aug 03, 2008 9:26 pm Post subject: |
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Hard to say. I would just try and take a comparative shot every week. You'll see 
Two shots by Su-Mu-Co Takumar 50/1.4
 
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I'm not absolutely retarded, English simply isn't my mother tongue :s)
up-to 30mm: Vivitar (Tokina) Series 1 VMC 28/1.9, Vivitar (Komine) MC close-focus 28/2.8, Zeiss Distagon T* 25/2.8 ZS
35mm: Super Takumar 35/2 PRO, S-M-C Takumar 35/2, S-M-C Takumar 35/3.5, CZJ eMC Flektogon 35/2.4, SC Curtagon 35/2.8, SC Baby-C 35/2.8, Vivitar 35/1.9
50mm: S-M-C Takumar 50/1.4, Tomioka Cosinon MC 55/1.4, Tomioka Yashinon 55/1.2, CZJ Biotar T 58/2, CZJ eMC Pancolar 50/1.8, MMZ Helios MC 44-3 58/2, Helios 77M 50/1.8, JOV Helios 77M-4 50/1.8, KMZ Zenitar M2s MC 50/2, KMZ Industar 50/3.5, MC Pentacon 50/1.8, MC Volna-9 50/2.8, Meostigmat 50/1.3, Polar 60/1.3
85mm: CZJ Biotar T 75/1.5 EX, CZJ eMC Pancolar 80/1.8, aJ Biometar 80/2.8, KMZ Helios 40-2 85/1.5 (custom hybrid of 40 and 40-2), MG Telefogar V 90/3.5
over 100mm: nothing now |
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Attila
Joined: 24 Feb 2007
Posts: 16006
Location: Budapest,Hungary
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| Posted: Sun Aug 03, 2008 9:33 pm Post subject: |
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Beautiful shoots!
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Olympus E-1,Bessa L,Bessa RF,Olympus OM2n,Nikon FA,Yashica Eletro 35 GN,
----------------------------------------------------------------------------------------------------
Carl Zeiss Jena:Flektogon 2.8/20mm,4/25mm,2.4/35,2.8/65mm,4.5/4cm Tessar, 8/500mm Fernobjektiv
Pancolar 1.4/55mm,1.8/50mm,1.8/80mm,Tessar 2.8/50mm,Biotar 2/58mm,1.5/75mm,1.5/7,5cm
Carl Zeiss: Sonnar 2.8/135,2.8/180mm,Tessar 4/135mm
Nikon: 3.5/20mm,2.8/28mm,1.4/35mm,1.4/50mm,1.2/50mm,2/50mm,1.8/105mm,2.5/105mm,4/200mm macro,4.5/300mm
Pentax: Pentax 1.2/50mm,1.8/85mm,4/200mm
Helios: Helios-40 1.5/8,5cm,Helios-44-1 2/58mm,Helios-44-2 2/58mm
Olympus OM: 3.5/18mm,3.5/21mm,1.4/50mm,3.5/55mm macro,2.8/135mm,2/90mm macro,35-70mm,60-250mm
Meyer: 4.5/35mm Primagon,Primoplan 1.9/58mm,1.9/75mm,2.8/100mm,Orestegor 2.8/135mm,4.5/40 Helioplan
Leica: 4/100 Macro Elmar,2.8/90 Elmarit last version
Please visit my Ebay shop to support my reviews !
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yalcinaydin
Joined: 20 May 2008
Posts: 244
Location: Turkey / Izmir
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| Posted: Sun Aug 03, 2008 9:41 pm Post subject: |
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Use b&w and don't worry about the color cast 
I had taken this shot for here, you can check the biggest file to see how this lens performs:
http://www.flickr.com/photos/yalcinaydin/2728993595/sizes/o/
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My name is "Yalcin", and exactly "Yalçın" |
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Attila
Joined: 24 Feb 2007
Posts: 16006
Location: Budapest,Hungary
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| Posted: Sun Aug 03, 2008 9:59 pm Post subject: |
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Very nice advertise for Takumars!
_________________
Olympus E-1,Bessa L,Bessa RF,Olympus OM2n,Nikon FA,Yashica Eletro 35 GN,
----------------------------------------------------------------------------------------------------
Carl Zeiss Jena:Flektogon 2.8/20mm,4/25mm,2.4/35,2.8/65mm,4.5/4cm Tessar, 8/500mm Fernobjektiv
Pancolar 1.4/55mm,1.8/50mm,1.8/80mm,Tessar 2.8/50mm,Biotar 2/58mm,1.5/75mm,1.5/7,5cm
Carl Zeiss: Sonnar 2.8/135,2.8/180mm,Tessar 4/135mm
Nikon: 3.5/20mm,2.8/28mm,1.4/35mm,1.4/50mm,1.2/50mm,2/50mm,1.8/105mm,2.5/105mm,4/200mm macro,4.5/300mm
Pentax: Pentax 1.2/50mm,1.8/85mm,4/200mm
Helios: Helios-40 1.5/8,5cm,Helios-44-1 2/58mm,Helios-44-2 2/58mm
Olympus OM: 3.5/18mm,3.5/21mm,1.4/50mm,3.5/55mm macro,2.8/135mm,2/90mm macro,35-70mm,60-250mm
Meyer: 4.5/35mm Primagon,Primoplan 1.9/58mm,1.9/75mm,2.8/100mm,Orestegor 2.8/135mm,4.5/40 Helioplan
Leica: 4/100 Macro Elmar,2.8/90 Elmarit last version
Please visit my Ebay shop to support my reviews !
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yalcinaydin
Joined: 20 May 2008
Posts: 244
Location: Turkey / Izmir
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| Posted: Sun Aug 03, 2008 10:08 pm Post subject: |
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| Attila wrote: | | Very nice advertise for Takumars! |
I'm using the caps of my MF lenses to assist in focusing as my both eyes are suffering from myopia and astigmatism at the same time
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My name is "Yalcin", and exactly "Yalçın" |
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Attila
Joined: 24 Feb 2007
Posts: 16006
Location: Budapest,Hungary
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| Posted: Sun Aug 03, 2008 10:09 pm Post subject: |
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_________________
Olympus E-1,Bessa L,Bessa RF,Olympus OM2n,Nikon FA,Yashica Eletro 35 GN,
----------------------------------------------------------------------------------------------------
Carl Zeiss Jena:Flektogon 2.8/20mm,4/25mm,2.4/35,2.8/65mm,4.5/4cm Tessar, 8/500mm Fernobjektiv
Pancolar 1.4/55mm,1.8/50mm,1.8/80mm,Tessar 2.8/50mm,Biotar 2/58mm,1.5/75mm,1.5/7,5cm
Carl Zeiss: Sonnar 2.8/135,2.8/180mm,Tessar 4/135mm
Nikon: 3.5/20mm,2.8/28mm,1.4/35mm,1.4/50mm,1.2/50mm,2/50mm,1.8/105mm,2.5/105mm,4/200mm macro,4.5/300mm
Pentax: Pentax 1.2/50mm,1.8/85mm,4/200mm
Helios: Helios-40 1.5/8,5cm,Helios-44-1 2/58mm,Helios-44-2 2/58mm
Olympus OM: 3.5/18mm,3.5/21mm,1.4/50mm,3.5/55mm macro,2.8/135mm,2/90mm macro,35-70mm,60-250mm
Meyer: 4.5/35mm Primagon,Primoplan 1.9/58mm,1.9/75mm,2.8/100mm,Orestegor 2.8/135mm,4.5/40 Helioplan
Leica: 4/100 Macro Elmar,2.8/90 Elmarit last version
Please visit my Ebay shop to support my reviews !
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zewrak
Joined: 12 Apr 2008
Posts: 831
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| Posted: Sun Aug 03, 2008 10:14 pm Post subject: |
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Well, the colourcast I dont care about. But I understand its almost a stop darker then it should be :p
_________________
My Flickr - Takumar.org
PENTAX K10D, Spotmatic
Asahi Auto Takumar 85/1.8
Asahi Takumar 105/2.8 135/3.5
Asahi Super Takumar 20/4.5 50/1.4 55/1.8 85/1.9 105/2.8 135/3.5 150/4 200/4
Asahi S-M-C Takumar 35/3.5 300/4
Asahi S-M-C Macro-Takumar 50/4,100/4
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dakoo
Joined: 08 Mar 2008
Posts: 224
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| Posted: Sun Aug 03, 2008 11:37 pm Post subject: Re: Kyoto |
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| kuuan wrote: |
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Thats a nice shot ! |
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yalcinaydin
Joined: 20 May 2008
Posts: 244
Location: Turkey / Izmir
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| Posted: Mon Aug 04, 2008 6:22 am Post subject: |
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| zewrak wrote: | | Well, the colourcast I dont care about. But I understand its almost a stop darker then it should be :p |
Yes you're right, I'm still in the phase of learning to use my new (old full Manual Sunpak 422D) flash. For these shots I've made a home made diffuser from A4 white sheet and this one is the test shot as you can tell from the cap on the eye. Full manual lens + Full manual flash + camera on Manual mode (Canon's M) = I need time to get use to it
This one is the best of the series but it has PS touch on the skin:
Full size:
http://www.flickr.com/photos/yalcinaydin/2728817981/sizes/o/in/photostream/
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My name is "Yalcin", and exactly "Yalçın" |
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orly_andico
Joined: 02 Jul 2008
Posts: 88
Location: Philippines
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| Posted: Mon Aug 04, 2008 8:03 am Post subject: |
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how do you position the A4 sheet as diffuser? is the flash pointed directly at the target? off-camera? pointed at a wall?
thanks...
_________________
Pentax K10D
Pentax: SMC-A 50/2, SMC-M 135/3.5, Takumar-A 70-200/4, SMC-DA 16-45/4 ED AL, Super-Tak 35/3.5, Super-Tak 50/1.4, Auto-Tak 135/3.5
Other: 37/2.8 Mir-1b, 55/2.2 Fujinon, 85/2 Jupiter-9, 135/3.5 CZ Jena |
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zewrak
Joined: 12 Apr 2008
Posts: 831
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| Posted: Mon Aug 04, 2008 8:11 am Post subject: |
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I use an empty filmcan, the transparent type that Tmax comes in. I cut a hole in the side of it and slide it over the flash ;D
_________________
My Flickr - Takumar.org
PENTAX K10D, Spotmatic
Asahi Auto Takumar 85/1.8
Asahi Takumar 105/2.8 135/3.5
Asahi Super Takumar 20/4.5 50/1.4 55/1.8 85/1.9 105/2.8 135/3.5 150/4 200/4
Asahi S-M-C Takumar 35/3.5 300/4
Asahi S-M-C Macro-Takumar 50/4,100/4
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yalcinaydin
Joined: 20 May 2008
Posts: 244
Location: Turkey / Izmir
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| Posted: Mon Aug 04, 2008 8:39 am Post subject: |
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| orly_andico wrote: | how do you position the A4 sheet as diffuser? is the flash pointed directly at the target? off-camera? pointed at a wall?
thanks... |
It's nothing special just a 2 mins application of a quick idea but can be improved easily I've bought wireless receivers from gadget infinity and they're on the way to me at the moment so until they arrive I don't have to opportunity to use lens away from the camera. In this shot, flash was mounted on the camera and directly pointed to the model and I guess 1/4 was enough as I used a large aperture to decrease the waiting time on recycling.
And my A4 sheet diffuser:
1- Fold the paper from the middle, repeat this once more
2- Now cut the paper equally from both sides to be able to mount it on the flash head (rubber can be used here, I don't know the exact word to use here )
3- Enfold the long part from the cut towards the lens. This long part will be the diffuser part.
As I said this was a quick work, nothing special or very effective
And I know that the text is not that great so I requested the photo from my sis, it will be added as I get it.
here is the picture:
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My name is "Yalcin", and exactly "Yalçın" |
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yalcinaydin
Joined: 20 May 2008
Posts: 244
Location: Turkey / Izmir
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| Posted: Fri Aug 08, 2008 2:45 pm Post subject: |
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I've this beauty; should I need/buy another 50/1.4 ?
The other is not an ordinary lens so let's be specific: Should I buy a Carl Zeiss Planar T* 50/1.4 (C/Y) if I found under 100$, will be an improvement in quality ?
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My name is "Yalcin", and exactly "Yalçın" |
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Attila
Joined: 24 Feb 2007
Posts: 16006
Location: Budapest,Hungary
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| Posted: Fri Aug 08, 2008 8:28 pm Post subject: |
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http://farm4.static.flickr.com/3029/2728817981_9e3b100a14.jpg
Beautiful ! congrats! I love it very much!
_________________
Olympus E-1,Bessa L,Bessa RF,Olympus OM2n,Nikon FA,Yashica Eletro 35 GN,
----------------------------------------------------------------------------------------------------
Carl Zeiss Jena:Flektogon 2.8/20mm,4/25mm,2.4/35,2.8/65mm,4.5/4cm Tessar, 8/500mm Fernobjektiv
Pancolar 1.4/55mm,1.8/50mm,1.8/80mm,Tessar 2.8/50mm,Biotar 2/58mm,1.5/75mm,1.5/7,5cm
Carl Zeiss: Sonnar 2.8/135,2.8/180mm,Tessar 4/135mm
Nikon: 3.5/20mm,2.8/28mm,1.4/35mm,1.4/50mm,1.2/50mm,2/50mm,1.8/105mm,2.5/105mm,4/200mm macro,4.5/300mm
Pentax: Pentax 1.2/50mm,1.8/85mm,4/200mm
Helios: Helios-40 1.5/8,5cm,Helios-44-1 2/58mm,Helios-44-2 2/58mm
Olympus OM: 3.5/18mm,3.5/21mm,1.4/50mm,3.5/55mm macro,2.8/135mm,2/90mm macro,35-70mm,60-250mm
Meyer: 4.5/35mm Primagon,Primoplan 1.9/58mm,1.9/75mm,2.8/100mm,Orestegor 2.8/135mm,4.5/40 Helioplan
Leica: 4/100 Macro Elmar,2.8/90 Elmarit last version
Please visit my Ebay shop to support my reviews !
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