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greg
Joined: 21 Mar 2009 Posts: 683
Expire: 2012-12-03
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Posted: Mon Sep 19, 2011 5:21 pm Post subject: Focusing Helicoid Information Requested |
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greg wrote:
I just came from e*bay and from what I saw after doing a search on "focus helicoid", something popped out. I am asking if my thoughts match up with other members.
Are these all made by the same company? There seems to be a marked similarity in the photos of the items.
It also appears that, perhaps, the four or more sellers offering the same price may be multiple accounts run by the same seller.
Bottom line- which to do - buy the bottom line price because they are all the same, or, go to a higher price hoping the quality may be better? |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Mon Sep 19, 2011 6:04 pm Post subject: |
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Attila wrote:
For what kind of camera do you need one or lens ? With little luck you able to find genuine one what is made by camera makers. Those one has zero risk. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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greg
Joined: 21 Mar 2009 Posts: 683
Expire: 2012-12-03
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Posted: Mon Sep 19, 2011 6:11 pm Post subject: |
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greg wrote:
OOPS!
I need it M42 to M42.
Canon XTi > EOS - M42 confirming adapter > Helicoid > M42 macro ring > lenses from folders |
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Mon Sep 19, 2011 6:13 pm Post subject: |
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Attila wrote:
I have a Pentax PK helicoid and M42 also available from Pentax
Canon XTi > EOS - PK confirming adapter > Helicoid > PK->M42 adapter-> M42 macro ring > lenses from folders
In this case your path looks like this you need to buy two inexpensive adapter + PK helicoid _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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Attila
Joined: 24 Feb 2007 Posts: 57865 Location: Hungary
Expire: 2025-11-18
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Posted: Mon Sep 19, 2011 6:16 pm Post subject: |
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Attila wrote:
Several member here bought Chinese made helicoid on this forum , they didn't reported any issues. _________________ -------------------------------
Items on sale on Ebay
Sony NEX-7 Carl Zeiss Planar 85mm f1.4, Minolta MD 35mm f1.8, Konica 135mm f2.5, Minolta MD 50mm f1.2, Minolta MD 250mm f5.6, Carl Zeiss Sonnar 180mm f2.8
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kds315*
Joined: 12 Mar 2008 Posts: 16641 Location: Weinheim, Germany
Expire: 2021-03-09
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Posted: Mon Sep 19, 2011 6:25 pm Post subject: |
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kds315* wrote:
These from Calvin work pretty well. See:
http://forum.mflenses.com/group-buy-on-helicoid-and-adaptors-end-15-may-t39141.html _________________ 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
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greg
Joined: 21 Mar 2009 Posts: 683
Expire: 2012-12-03
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Posted: Wed Oct 26, 2011 5:48 pm Post subject: Received today |
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greg wrote:
I received the focus helicoid I ordered from Big-Is on e*ay. It is very well made and heavily dampened. I did one of those 'offers' and was happy to get it cheaper than advertised. The model I got is 12-17mm m42-m42. |
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calvin83
Joined: 12 Apr 2009 Posts: 7555 Location: Hong Kong
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Posted: Thu Oct 27, 2011 3:22 pm Post subject: |
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calvin83 wrote:
greg wrote: |
I just came from e*bay and from what I saw after doing a search on "focus helicoid", something popped out. I am asking if my thoughts match up with other members.
Are these all made by the same company? There seems to be a marked similarity in the photos of the items.
It also appears that, perhaps, the four or more sellers offering the same price may be multiple accounts run by the same seller.
Bottom line- which to do - buy the bottom line price because they are all the same, or, go to a higher price hoping the quality may be better? |
Most of them are made by the same supplier except those I offered in the group buy.
The quality of the helicoid from the Supplier A is the best MIC helicoid I have tried. However, they don't have as much choice as those generic helicoids. They have some new helicoids for M4/3 camera which will be available for next groupbuy before Chrismas. _________________ https://lensfever.com/
https://www.instagram.com/_lens_fever/
The best lens is the one you have with you. |
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std
Joined: 09 Feb 2010 Posts: 1826 Location: Bulgaria
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Posted: Thu Oct 27, 2011 4:21 pm Post subject: |
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std wrote:
Hi Calvin,
The micro 4/3 version sounds interesting.
Looking forward to your group buy. _________________ Stefan
My lens list:
SLR MD: Rokkor 1,7/50 Exakta: Kilfitt-Makro-Kilar E 3.5/4cm; CZJ 2/50 Pancolar;M42: CZJ 2.8/50 Tessar; Mir-1B 2.8/37; Jupiter-9 2/85 T-mount: Tamron 5.9/200; Tamron 6.9/300; Tamron 7.5/400 C-mount: Cosmicar 1.8/50 Y/S: Sun 3.5/38-90, Sun 4/70-210 RF Contax RF: Jupiter-8 2/50; Contax G:CZ 2,8/21 Biogon T; CZ 2,8/28 Biogon T; CZ 2/35 Planar T; CZ 2/45 Planar T; CZ 2,8/90 Sonnar T |
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