Camer stability & kit

This page include the vibration and the long lens support frames
The following is the relative paper from Charlie Kim /nikonians and Bob Atkins /photonet
http://www.nikonians.org/html/resources/non-nikon_articles/markins_guides/DrKimReport_v4_2006.pdf
http://photo.net/learn/nature/mlu

We know that we can simulate the motion by the following law F=Ma=MX'' ( Newton law ) , F =CX'(damper) , F=KX (spring) and the Equtation is F=MX"+CX'+KX
The Solution of the equation will include Sin,cos and Expt
If we want to obtain one clear image than we need to reduce the vibration magnitudes and duration.That is why I desing one support frame that include mass , damper and spring sys.

For the requirement of the birding photo or long lens stability , I would suggest the the following solutions
1. MLU (Mirror Lock Up) : most of the DSLR have this function

2. Increase Damper mass : like sand bag

3. Add one long lens supporting frame
I desing two supporting frame for nikon D2X (D200) plus AF-S 600 EDII.
I will show the design concept later .
The following is one the link for lens_plates
http://www.reallyrightstuff.com/lens_plates/nikkor_auto_focus/index.html

4. The light weight shutter curtain is required.
Some consumer digital camera do not have the shutter curtain and mirror so that the
vibration is almost can be cover by the tripod

Gain Compression 1dB

resbw 3Khz max level 15dBm
rfin_pin= P_in +cal_ary[1,1]

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the following loop will serach the slope Pout vs. Pin

找Pin=-11 dBm 開始 五步(每步增加1dBm) 迴圏內的 最大gain 當作 線性段的斜率

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P_=-11
For i=1 to 5 do

P_in=P_in+1
SET RF PORT RFIN_PIN SOURCE TO LEVEL (P_IN+CAL_ARY[1,1]) freq RF_in_Freq
SET RF PORT RFout_PIN measure to scalar with resbw 3Khz max level 15.0dBm freq RF_in_Freq
meaasure rf port rfout_pin scalar level into P1dB_out
MAES_PWR[i]=P1dB_out[1]+cal_ary[1,2]+gain_offset
search_gain[i]=meas_pwr[i]-P_in

if search_gain[i]>max_gain then
max_gain=search_gain[i]
peak_i=i
end if
end_for