The Scanning section is BELOW
A few attempts to clarify some mysteries about the basics of flash and digital photography, hopefully helpful. More detail for those interested, more about how the details actually work (which is good to know when you're ready).
Pixels, Printers, Video - What's With That? Basic Fundamentals
Image Resize - Cropping, Resampling, Scaling About the Least we need to know
White Balance Correction Click on White things
Why Should I Shoot Raw? It's the easy way to go
File Types, Bit Depth, Image size, Memory size
What are JPG losses? JPG Artifacts
How Light Meters Work (maybe not as assumed)
Details about Metering Principles (including TTL)
A Histogram is Not a Light Meter Incident vs. Reflected meters
18% Gray Card - What's the Idea?
EV - Exposure Value and EV Chart
Do I need a handheld light meter? Sekonic L308S
Surprises in the Use of Histograms Avoid the camera single gray histogram
Histograms are Gamma Encoded The numbers may not be what you think
What and Why is Gamma? (with calculator).
Introduction Basics about light and flash
Inverse Square Law Flash falls off with distance
Guide Numbers with calculator (and a HSS calculator)
Bounce Flash, and TTL Flash Compensation
Camera Distance Does Not Affect Exposure
Continuous light vs. Flash - Shutter Speed
Other Differences, Continuous vs Flash
HSS - Auto FP flash mode - What is it?
Flash pictures are Double Exposures - Important
Flash Outdoors - Fill Flash in Sunlight
Flash Indoors - Factors affecting TTL metering exposure
Auto ISO - for flash?
Rear Curtain Sync - for Blur from Ambient Motion Trails
Matching White Balance of Room Lights - Colored Filters on Flash
A Beginners Guide to Select a Hot Shoe Flash Part 2, chart
Comparing Power of Flashes with Guide Number Ratings
Review of Yongnuo YN-565EX Speedlight ($84)
Review of Aperlite YH-700N Speedlight ($90)
Review of Neewer NW-985N Speedlight ($63)
Review of Neewer VK750 II Speedlight ($53).
Nikon TTL BL with D-Lens Distance Zoom lens distance accuracy is poor
Third Party Flash Brands Bypass D-Lens Distance Problems
Comparisons of Optical Slave Triggers (for the SB-600 too)
What is Soft Light? - Repeated here, important
Mounting Speedlights in Umbrellas
A Standard 45 Degree Portrait Lighting Setup
Nikon CLS Commander Wireless Remote Flash System (AWL)
Lighting Kits for Home Setups Flash is good for Portraits
Comparing Properties of Speedlights vs Studio Lights
Scanning Thousands of old Slides with a digital camera
f/stops and shutter speeds Understanding the numbers
Nominal and Precise values f/stops, shutter speeds and ISO
Depth of Field A better way to blur the background
Field of View Lens and sensor
Crop Factor Equivalent Focal Length
RGB color Digital color
Have we hit a megapixel limit?
Diffraction Limited Pixels? Really?
Memory Card Speed How much do we need?
Camera Exif Data Need a good Exif viewer?
Good Books on Flash Photography
Photo Editor Curve Tool (compared with Levels)
| Compare EV difference of Two: | ||
| Camera Exposures | f/stop, shutter, or ISO values | |
| Power of Flashes from Guide Numbers | Distances due to Inverse Square Law | |
| DPI calculator - Printing and Scanning resolution | Guide Number of ganged flashes | |
| Guide Number calculator | HSS Guide Number calculator | |
| Field of View calculator and Chart, and Math | Depth of Field and Hyperfocal - A better way to blur the background | |
| Percentage Fill Flash of TTL Flash Compensation | Nominal and Precise values - f/stops, shutter and ISO | |
| Crop Factor calculators | Calculate Aspect Ratio | |
| EV Chart and EV calculator | Crop image to match print paper size | |
| Find Distance or Size of Object in image | Calculate motion blur or camera shake in pixels | |
| Milky Way star rotation | Convert Bytes, KB, MB, GB, TB | |
| Calculate Gamma | Calculate Diffraction | |
| Maximum image dimensions from Megapixels | Copying slides - image size, magnification, resolution | |
This scanning material is about the basics of scanning, still very valid, however digital camera photos are already scanned, so to speak (meaning, first preference is to use your original file if you have it). The purpose is to offer some scanning tips and to explain the basics for photos and documents. It is also about the fundamentals of digital images, about the basics to help you get the most from your images from your scanner and camera. How it works, for those that want to know.
Included here are the general questions that we've all asked about digital images. The material is about the basics, and is appropriate for the beginner. The content is certainly not superficial, but it is not at all difficult either, it is just simply about how it works. It describes in plain language the things we need to know to be efficient and get the most from our images, in the various ways that we can use them.
Many newbies want to scan a photo at the greatest possible resolution. We'll explain why that's the wrong answer, with tips about how to choose a more appropriate answer. That and many other scanning basics are covered here, and it's intended to be a fast jump start to aid newcomers to graphics and scanning. There will be a little technique to learn, but when you've seen it once, then it's rather simple.
Video Resolution - How much to scan?
Say No to 72 dpi - It's a false notion
File types, Bits, Image size, Memory size
Images for television or PowerPoint
Printing Resolution - Scaling and Resampling
The Scaling Menu - Scaling Output Size
Finding the Scaling and Resampling Menus
Printing Guidelines - Printing dpi
Printer Resolution - How much to scan?
Line art and Threshold - Copy, OCR, Text
Descreen to remove Moiré Interference
Images in printed media
Photo Resolution - How much can we scan?
Image File Formats - Which format?
Transparent Media Adapter - 35 mm slides?
A few Links to Other scanning sites
A few Frequently Asked Questions - FAQ
Copyright © 1997-2019 by Wayne Fulton - All rights are reserved.
Please report ( Here ) any problems with the calculators, or with any aspect of any page. Reporting problems will be very much appreciated, thank you.
I do try to help with questions about the basics or about my material, but I cannot help with the "what hardware to buy" or "my hardware doesn't work" questions, so those two email types probably necessarily get no response.
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