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Details about  Trusmt Follow focus NF4, backlash less than 0.5mm,FF for dia.15mm rods

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Trusmt Follow focus NF4, backlash less than 0.5mm,FF for dia.15mm rods
Trusmt-Follow-focus-NF4-backlash-less-than-0-5mm-FF-for-dia-15mm-rods
Item Ended
Item condition:
New
Ended:
Apr 09, 2012 03:40:07 PDT
Starting bid:
US $299.00
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Item location:
nanjing,jiangsu, China

Description

eBay item number:
270952601311
Seller assumes all responsibility for this listing.

Item specifics

Condition:
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ... Read moreabout the condition
 

trusmt2011

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If you are interested in this one, Please Search "Trusmt" on Ebay to Find out All of our Products!!

TrusmT O&E Technology Co LTD is a manufacturer of camera equipment and accessories. A manufacturer and partner to a major US brand over the last five years, we have extensive experience in the design and manufacture of high quality equipment that is used throughout the world. In 2011 we decided to market our own products under the TrusMT brand to provide our products at a competitive price to the world market.

 

Our main products: follow focus, matte box, DSLR quick release plate, CAGE, 35mm adapter, Rod support system,Viewfinder and so on.

Our website: www.trusmt.com 

New series NF of Follow focus, it use our new gear box system, the backlash less than 0.5mm!

 GOOD NEWS! Free shipping!!! And our all products did 10%~15% price reduction for sales promotion.  

Follow Focus

 

Our follow focus units are second to none. After listening to our customers our improved second generation series has less dampening, new gearbox lubricant and improved design which gives virtually zero backlash (<0.5mm). Accurate and reliable. Comparable to units three times the price.

 

  • High grade aluminium construction with A/B hard stops.
  • Long-life precision engineered gearbox enables accurate focusing.
  • Minimal backlash.
  • Bright white magnetic marking disk.
  • Smooth controlled operation.
  • Various clamp options
  • Various gear ring attachment sizes (0.8 pitch)

Follow Focus FF-NF4

Version 4 of our popular follow focus unit with adjustable height.

 

 

Specification.

 

  • High grade aluminium construction with A/B hard stops.
  • Long-life precision engineered gearbox enables accurate focusing.
  • Virtually Zero backlash (<0.5mm).
  • Bright white magnetic marking disk.
  • Smooth controlled operation.
  • Quick release 15mm clamp.
  • Pivoting adjustment.
  • FF gear can be swapped either side of gearbox
  • Various gear ring attachment sizes 61mm, 72mm 81mm 90mm (0.8 pitch)
  • Requires 15mm Rail Support (Not Supplied)

Kit contents:

1. new follow focus NF4

2. 4pcs gear ring(Dia.61, Dia.72, Dia.81,Dia.90)

Shippmient item: express economy (If everything goes well, it will take about 4~6 working days.)

Pls note: The price is FOB China, it is not including customs fee. We just charge the product cost + shipping cost!   

    Photobucket width=1024  

Photobucket width=1024 Photobucket width=1024 Photobucket    

Backlash test

We put a mark on the marking disc, and rotate the follow focus clockwise and counterclockwise to align the mark in order to test the backlash.

We use a Canon 5Dmark2 together with the 24-105L lens to shoot the picture of a piece of professional testing paper, we rotate the follow focus clockwise to the specified point, take a shoot, then rotate it counterclockwise to the same point to take another shoot. We compare the two pictures to figure out which calibration on the testing paper is the clearest, subtract the two numbers, and finally get the backlash.

We compare the new version NFseries and the old T2, the following are the test results.

NF:

Rotate clockwise to align the mark:

NF2:
Counterclockwise:


NF2:
Details:

Clockwise:

Photobucket
Counterclockwise:


Photobucket
T2:

Rotate clockwise to align the mark:

T2:
Counterclockwise:


T2:
Details:

Clockwise:

Photobucket
Counterclockwise:
 

PhotobucketThe testing paper is enlarged, so 1mm backlash on the follow focus corresponds to 3mm on the paper. From the results we can conclude that the system backlash of NF is less than 0.5mm, while the T2 has almost 3mm backlash. Although the outside of the two just look the same, we really make a difference inside.

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