Objectives, Tube Lenses, Polarizers, etc
This page documents my plan and tests for objectives, tube lens, filters, etc.  As well as my observations regarding Pixel Shift.
  1. Objectives
  2. Tube Lenses
  3. Condenser
  4. Collimeter
  5. Polarizers
  6. Retardation Plates
  7. Tubes
  8. Sensor
 Objectives

Armenia, 26 Apr 2019
Here are the objectives that  I own  and that  I want .  And things that  I like  and that  I don't like .  All are Infinity Corrected; Plan Achromat (Mitutoyo), Plan (Nikon, AmScope 40X & 60X, Olympus) or Plan Fluor (Amscope 4X); no coverglass (∞/0 or ∞/-); dry (not oil).
 
"One of the metrology/inspection manufacturers, Mitutoyo, makes some spectacular infinity corrected objectives featuring very long working distances. They are quite large and have an odd thread (M26, but 0.706 mm pitch instead of the BD pitch of 0.75 mm), so are not easily used. However, they make incredible "extreme-macro" lenses."   - Source
 
Mag. H
a
v
e
Mitutoyo Nikon AmScope Olympus OMAX Leitz Canon Sony
NA WD Price NA WD Price NA WD Price NA WD Price NA WD Price NA WD Price Len WD Price Len WD Price
1X 3         100 300 $750 90 280 $1000
180 240 $1400  
2X 0.055 34.0 $935 0.06 7.5 $417            
4X 2 0.1030 $183   0.10 18.5 $140        
0.13 ? $69 $49
5X 0.14 34.0 $705            
0.21 25.4 $4,750
10X 2 0.28 33.5 $885 0.25 10.5 $279 0.35 ? $162 0.25 10.6 $315        
0.42 15.0 $8,125
20X 1 0.28 30.5 $3,095          
0.42 20.0 $2,055 0.40 1.2 $375
32X 0.50 ? $79    
40X 1 0.65 0.57 $490 0.65 ? $88 0.65 0.6 $575 0.60 2.8 $197      
50X 0.42 20.5 $3,425            
0.55 13.0 $2,675
0.75 5.2 $5,725 0.80 1.0 $1,645
60X 1 0.85 ? $125          
80X 1   0.90 0.20 $77        
100X 0.55 13.0 $4,795          
0.70 6.0 $3,495  
0.90 1.3 $6,175 0.90 0.7 $462 0.90 ? $199
I own it I want it I like it I don't like it
References:
   - Labeling of Objectives
   - Objective Lenses - a nice overview
Sources:
   - AmScope Infinity Corrected
   - Edmunds: Mitutoyo
   - Edmunds: Olympus
   - SEO: Nikon
Test Results
Armenia, 26 Apr 2019
 
 Tube Lens

Lake Placid, 2 May 2019
Here is what I have available to test for use as a tube lens.  Followed by my results testing them.
 
Make and Model Focal Length (mm) Specified Price
Working Distance (mm) Pupil Distance (mm)
Canon 100mm Macro 100 n/a n/a $749
Canon 180mm Macro 180 n/a n/a $1,399
Raynox DCR-150 208 210 (EM), 208 (SR) 50 (RO) $62
Sony 90mm Macro 90 n/a n/a $998
Thorlabs ITL200 200 148 (TL), 245 (RO) 70-170 (TL), 75 (RO) $482
  Source Source

 
Test Results
Armenia, 26 Apr 2019
Make, Model and Orientation Optimum Working Distance (mm)
(measured between sensor and back end of tube lens)
Raynox DCR-150
Raynox DCR-150 Reversed
Thorlabs ITL200
Thorlabs ITL200 Reversed

Images

 
References:
- Setting up a tube lens
      Raynox DCR-150 tube assembly with flocking
- Robert O'Toole
      TUBE LENS TEST 2018
      RAYNOX TUBE LENSES
      THORLABS ITL200 TUBE LENS TEST
 Condenser

Lake Placid, 24 May 2019
Here is what I have available to test.
 
Make & Model N/A Aperture Price
Nikon Abbe 1.25 $90 (w/DF & Rheinberg filters)
Olympus Abbe 1.25 $29

Nikon Condenser
Olympus Condenser

Test Results
Lake Placid, 24 May 2019
 
 Collimeter

Lake Placid, 24 May 2019
Here is what I have available to test.
 
Make & Model Aperture Price
Leitz $66
Olympus $59

Leitz Collimeter
Olympus Collimeter

Test Results
Lake Placid, 24 May 2019
 
 Polarizers

Lake Placid, 24 May 2019
Here is what I have available to test.
 
Source Material Extinction Ratio Thickness (mm) Transmission (Single)(%) Dia (mm) Price (each)
Edmund's Glass 10000:1 2.00 25.0 50.8 $199
Plastic 9000:1 2.20 36 50.8 $31
eBay Plastic 1000:1 0.80 38 45 $7

Test Results
Armenia, 26 Apr 2019
 
 Retardation Plates

Lake Placid, 24 May 2019
Here is what I have available to test.
 
Source Material Retardance Type Transmission (%) Dimension (mm) Price
Edmund's Film λ/4 Achromatic Waveplate >90 50.0 x 50.0 $12
λ/2 Multiple Order Waveplate >90 50.0 x 50.0 $12
λ Multiple Order Waveplate >89 50.0 x 50.0 $18

Test Results
Armenia, 26 Apr 2019
 
 Tubes

Lake Placid, 5 May 2019
This is a calculation of what combinations of Thorlabs Adjustable Lens Tubes and Stackable Lens Tubes will give me a good range of lengths.  Read the top table left to
right.  So, an SM2L03 paired with an SM2V05 gives the range of Min Len to Max Len as noted.

 
 Pixel Shift

Background
Armenia, 26 Apr 2019
Test Results
Armenia, 26 Apr 2019