Search found 500 matches

by harisA
Mon Mar 05, 2018 2:35 pm
Forum: Photography Through the Microscope
Topic: A Study in Scarlet aka There Will be Blood - images added
Replies: 17
Views: 5206

The images shown here are stiches of multiple photos. Also low power objectives have been used.So my question is what is the dimensions of the slides?
by harisA
Fri Feb 23, 2018 6:07 am
Forum: Photography Through the Microscope
Topic: Ball grid array from graphics card board
Replies: 0
Views: 1107

Ball grid array from graphics card board

This is a photo of BGA (BALL GRID ARRAY) from a graphics card board. The gpu was removed in a brutal manner and as a result many of the underlying solder balls were destroyed.Epi darkfield illumination.

Image
by harisA
Mon Feb 19, 2018 11:54 am
Forum: Equipment Discussions
Topic: Canon Eos camera question
Replies: 4
Views: 875

Theoretically a denser aps sensor will give you some advantage especially with lower power objectives (5x,10x) which require high pixel count sensors.Nowadays upper limit is 24mp for APS.I have no experience with EOS cameras and microscopy work (although a own a FF CANON body) but if I have to sugge...
by harisA
Fri Jan 26, 2018 7:49 am
Forum: Equipment Discussions
Topic: Yet another "exotic" lens
Replies: 4
Views: 1159

Hi Robert Although I have experience mounting various types of lenses this one requires a lot of work due to huge front element.From what I understand it scans various types of film and then project directly on paper like a typical enlarger lens.It may be suitable for large format cameras due to hug...
by harisA
Tue Jan 23, 2018 2:22 am
Forum: Photography Through the Microscope
Topic: A riddle
Replies: 6
Views: 836

Thank you Pau, but no polarized light has been used.
by harisA
Tue Jan 23, 2018 1:36 am
Forum: Photography Through the Microscope
Topic: A riddle
Replies: 6
Views: 836

ChrisR wrote:Muslim bridal wear?
This is a 5X microscope image ....
by harisA
Mon Jan 22, 2018 12:15 pm
Forum: Photography Through the Microscope
Topic: A riddle
Replies: 6
Views: 836

A riddle

What is this?


Image
by harisA
Mon Jan 22, 2018 3:46 am
Forum: Equipment Discussions
Topic: Yet another "exotic" lens
Replies: 4
Views: 1159

It's ''cm'' scale but my test was very rough using a led torch and projecting its real image on a white screen .
by harisA
Sun Jan 21, 2018 7:32 am
Forum: Equipment Discussions
Topic: Yet another "exotic" lens
Replies: 4
Views: 1159

Yet another "exotic" lens

After various strange lens (x-ray , stepper lenses ,scanner lenses etc)presented here from "glass junkie" users -myself included- is time for a new candidate. http://www.photomacrography.net/forum/userpix/1778_kon_2.jpg It is marked ELH-N070 and a google search reveals that is used on a professional...
by harisA
Tue Jan 09, 2018 3:59 am
Forum: Technical and Studio Photography -- Macro and Close-up
Topic: Vignetage with relay lens
Replies: 9
Views: 2362

From what I understand your are using your finite objectives as infinites in combination with a telephoto lens as tube lens. This is possible with low magnification objectives since are much more tolerant than high magnification ones. When you are using the finite as infinite you are practically wor...
by harisA
Thu Dec 14, 2017 1:30 pm
Forum: Equipment Discussions
Topic: Any reviews on China scope 10X/20X objectives ??
Replies: 3
Views: 814

Several years ago I bought the following 4x finite objective (think it is ''type b'' 4x according to your image) https://www.ebay.com/itm/Compound-Microscope-Objective-Lens-10X-Plan-Achromatic-DIN-RMS-thread-/320600929807?hash=item4aa54df60f It is of decent quality but for sure is inferior to Nikon ...
by harisA
Sun Dec 10, 2017 10:02 am
Forum: Equipment Discussions
Topic: 4X Objective Lens Test Comparison - Part 1
Replies: 31
Views: 5172

Many thanks for sharing the information with us. I have 2 questions. 1)Can you please be more specific about the painters tape? Are you using it after cleaning the wafers in ultrasonic bath? 2)What is the dimensions of your wafer test target?I 'm thinking of buying some 6'' wafer plates through ebay...
by harisA
Fri Dec 08, 2017 7:36 am
Forum: Photography Through the Microscope
Topic: Unknown electronic component
Replies: 8
Views: 1241

Here is some additional information. Initial photo was taken with 10x objective so approx.. dimensions of the component are 1.9mmx2.5mm. This came from mobile phone motherboard. Here are some 5x images. 1)Bright field http://www.photomacrography.net/forum/userpix/1778_ic1_1.jpg 2)Bright field with c...
by harisA
Mon Dec 04, 2017 10:03 am
Forum: Photography Through the Microscope
Topic: Unknown electronic component
Replies: 8
Views: 1241

Unknown electronic component

This came from an electronic device's motherboard. Hope someone can identifu it.

Image
by harisA
Sun Dec 03, 2017 2:50 am
Forum: Equipment Discussions
Topic: Flange Mod for use with Nikon 1.4TC
Replies: 30
Views: 3401

Mike the link is not working for me giving a server error message.