TECHSPEC® Fixed Focal Length Lenses
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Panoramas Shoot with the Camera Positioned Vertically As This Will Give the Photo Merging Software More Wriggle-Room in Merging the Images
P a n o r a m a s What is a Panorama? A panoramic photo covers a larger field of view than a “normal” photograph. In general if the aspect ratio is 2 to 1 or greater then it’s classified as a panoramic photo. This sample is about 3 times wider than tall, an aspect ratio of 3 to 1. What is a Panorama? A panorama is not limited to horizontal shots only. Vertical images are also an option. How is a Panorama Made? Panoramic photos are created by taking a series of overlapping photos and merging them together using software. Why Not Just Crop a Photo? • Making a panorama by cropping deletes a lot of data from the image. • That’s not a problem if you are just going to view it in a small format or at a low resolution. • However, if you want to print the image in a large format the loss of data will limit the size and quality that can be made. Get a Really Wide Angle Lens? • A wide-angle lens still may not be wide enough to capture the whole scene in a single shot. Sometime you just can’t get back far enough. • Photos taken with a wide-angle lens can exhibit undesirable lens distortion. • Lens cost, an auto focus 14mm f/2.8 lens can set you back $1,800 plus. What Lens to Use? • A standard lens works very well for taking panoramic photos. • You get minimal lens distortion, resulting in more realistic panoramic photos. • Choose a lens or focal length on a zoom lens of between 35mm and 80mm. -
Konica FC-1 PDF Version
Konica FC-1 posted 7-20-'03 This camera manual library is for reference and historical purposes, all rights reserved. This page is copyright by , M. Butkus, NJ. This page may not be sold or distributed without the expressed permission of the producer I have no connection with any camera company On-line camera manual library This is the full text and images from the manual. If you find this manual useful, how about a donation of $3 to: M. Butkus, 29 Lake Ave., High Bridge, NJ 08829-1701 and send your e-mail address so I can thank you. Most other places would charge you $7.50 for a electronic copy or $18.00 for a hard to read Xerox copy. This will help me to continue to host this site, buy new manuals, and pay their shipping costs. It'll make you feel better, won't it? If you use Pay Pal, use the link below. Use the above address for a check, M.O. or cash. Thank you for your purchase of the Konica FC-1. Like its sister model, the FS-1, which is highly reputed, the Konica FC-1 is a shutter speed-priority TTL-AE SLR which is equipped with the world's biggest and most versatile central processing unit (CPU). Incorporating an easy film loading system, it is a perfected camera readily usable even by a photographic layman. With the Konica Auto-Winder F (available for separate sale), it is possible to take pictures in succession at 1.5 f.p.s., giving full play to the performance of the Konica FC-1 . -
Depth-Aware Blending of Smoothed Images for Bokeh Effect Generation
1 Depth-aware Blending of Smoothed Images for Bokeh Effect Generation Saikat Duttaa,∗∗ aIndian Institute of Technology Madras, Chennai, PIN-600036, India ABSTRACT Bokeh effect is used in photography to capture images where the closer objects look sharp and every- thing else stays out-of-focus. Bokeh photos are generally captured using Single Lens Reflex cameras using shallow depth-of-field. Most of the modern smartphones can take bokeh images by leveraging dual rear cameras or a good auto-focus hardware. However, for smartphones with single-rear camera without a good auto-focus hardware, we have to rely on software to generate bokeh images. This kind of system is also useful to generate bokeh effect in already captured images. In this paper, an end-to-end deep learning framework is proposed to generate high-quality bokeh effect from images. The original image and different versions of smoothed images are blended to generate Bokeh effect with the help of a monocular depth estimation network. The proposed approach is compared against a saliency detection based baseline and a number of approaches proposed in AIM 2019 Challenge on Bokeh Effect Synthesis. Extensive experiments are shown in order to understand different parts of the proposed algorithm. The network is lightweight and can process an HD image in 0.03 seconds. This approach ranked second in AIM 2019 Bokeh effect challenge-Perceptual Track. 1. Introduction tant problem in Computer Vision and has gained attention re- cently. Most of the existing approaches(Shen et al., 2016; Wad- Depth-of-field effect or Bokeh effect is often used in photog- hwa et al., 2018; Xu et al., 2018) work on human portraits by raphy to generate aesthetic pictures. -
Lens Control Catalog
EF Lens Control Catalog 2021 EF Lens Control Why Lens Control? With ISSI EF lens control systems, controlling the lens doesn't Using a high-quality lens is a necessity in any vision application. require a specific camera to be connected. The ISSI EF lens Most machine vision cameras don't have built-in EF lens controllers allow operation of an EF lens on any camera. control. Typically, to use an SLR lens on a non-SLR camera means sacrificing control. With the EF lens control systems, any The ISSI EF lens control systems are designed to operate EF lens can be used on any camera. Canon®, Sigma® and Tamron® EF lenses on non-DSLR cameras without a native active EF mount. • Remote control of zoom, focus, aperture and image stabilization Rather than give the camera automatic control of focus and • Auto-detection of attached lens and F-number stops aperture, ISSI EF lens control systems give that control to the • Unlimited programmable preset capability to easily operator. Devices feature an optional Ethernet connection for store and recall saved positions on the lens operat ing over long distances or via a network connection and • 10/100Mbps Ethernet or serial communication serial communication. Control of these devices can also be • Multiple controllers can be connected and written into existing software for both Windows and Linux via simultaneously controlled over a network ASCII -based API commands via UDP protocol (TCP/IP). • Easy to use software interface and TCP/IP API or ISSI's EF lens controllers can be tailored to fit custom ASCII commands for Windows and Linux applications for control of Canon, Sigma and Tamron lenses. -
Chapter 3 (Aberrations)
Chapter 3 Aberrations 3.1 Introduction In Chap. 2 we discussed the image-forming characteristics of optical systems, but we limited our consideration to an infinitesimal thread- like region about the optical axis called the paraxial region. In this chapter we will consider, in general terms, the behavior of lenses with finite apertures and fields of view. It has been pointed out that well- corrected optical systems behave nearly according to the rules of paraxial imagery given in Chap. 2. This is another way of stating that a lens without aberrations forms an image of the size and in the loca- tion given by the equations for the paraxial or first-order region. We shall measure the aberrations by the amount by which rays miss the paraxial image point. It can be seen that aberrations may be determined by calculating the location of the paraxial image of an object point and then tracing a large number of rays (by the exact trigonometrical ray-tracing equa- tions of Chap. 10) to determine the amounts by which the rays depart from the paraxial image point. Stated this baldly, the mathematical determination of the aberrations of a lens which covered any reason- able field at a real aperture would seem a formidable task, involving an almost infinite amount of labor. However, by classifying the various types of image faults and by understanding the behavior of each type, the work of determining the aberrations of a lens system can be sim- plified greatly, since only a few rays need be traced to evaluate each aberration; thus the problem assumes more manageable proportions. -
Depth of Field PDF Only
Depth of Field for Digital Images Robin D. Myers Better Light, Inc. In the days before digital images, before the advent of roll film, photography was accomplished with photosensitive emulsions spread on glass plates. After processing and drying the glass negative, it was contact printed onto photosensitive paper to produce the final print. The size of the final print was the same size as the negative. During this period some of the foundational work into the science of photography was performed. One of the concepts developed was the circle of confusion. Contact prints are usually small enough that they are normally viewed at a distance of approximately 250 millimeters (about 10 inches). At this distance the human eye can resolve a detail that occupies an angle of about 1 arc minute. The eye cannot see a difference between a blurred circle and a sharp edged circle that just fills this small angle at this viewing distance. The diameter of this circle is called the circle of confusion. Converting the diameter of this circle into a size measurement, we get about 0.1 millimeters. If we assume a standard print size of 8 by 10 inches (about 200 mm by 250 mm) and divide this by the circle of confusion then an 8x10 print would represent about 2000x2500 smallest discernible points. If these points are equated to their equivalence in digital pixels, then the resolution of a 8x10 print would be about 2000x2500 pixels or about 250 pixels per inch (100 pixels per centimeter). The circle of confusion used for 4x5 film has traditionally been that of a contact print viewed at the standard 250 mm viewing distance. -
Depth of Focus (DOF)
Erect Image Depth of Focus (DOF) unit: mm Also known as ‘depth of field’, this is the distance (measured in the An image in which the orientations of left, right, top, bottom and direction of the optical axis) between the two planes which define the moving directions are the same as those of a workpiece on the limits of acceptable image sharpness when the microscope is focused workstage. PG on an object. As the numerical aperture (NA) increases, the depth of 46 focus becomes shallower, as shown by the expression below: λ DOF = λ = 0.55µm is often used as the reference wavelength 2·(NA)2 Field number (FN), real field of view, and monitor display magnification unit: mm Example: For an M Plan Apo 100X lens (NA = 0.7) The depth of focus of this objective is The observation range of the sample surface is determined by the diameter of the eyepiece’s field stop. The value of this diameter in 0.55µm = 0.6µm 2 x 0.72 millimeters is called the field number (FN). In contrast, the real field of view is the range on the workpiece surface when actually magnified and observed with the objective lens. Bright-field Illumination and Dark-field Illumination The real field of view can be calculated with the following formula: In brightfield illumination a full cone of light is focused by the objective on the specimen surface. This is the normal mode of viewing with an (1) The range of the workpiece that can be observed with the optical microscope. With darkfield illumination, the inner area of the microscope (diameter) light cone is blocked so that the surface is only illuminated by light FN of eyepiece Real field of view = from an oblique angle. -
Mercury User Guide
MERCURY USER GUIDE Version 0.7 12-23-2018 Table of Contents Table of Contents..............................................................................................................................2 Chapter 1: Mercury Overview...........................................................................................................5 1.1 Guide to using this Guide...........................................................................................................5 1.2 Introduction................................................................................................................................5 1.2.1 The Mercury Concept.........................................................................................................5 1.2.2 System Diagram..................................................................................................................6 1.2.3 Basic Mercury Terminology...............................................................................................8 1.2.4 Front and Rear Spacing Example.......................................................................................8 1.3 Basic Mercury Modules..............................................................................................................9 1.3.1 Basic Module Descriptions.................................................................................................9 1.3.2 Example Configurations...................................................................................................11 1.4 Precautions and -
AUTO LENS ADAPTER USER MANUAL LAE-CM-CEF Canon EF/EF-S Lens to Canon EOS-M Camera INTRODUCTION
AUTO LENS ADAPTER USER MANUAL LAE-CM-CEF Canon EF/EF-S Lens to Canon EOS-M Camera INTRODUCTION Thank you for purchasing the Vello LAE-CM-CEF Auto Lens Adapter – Canon EF/EF-S Lens to Canon EOS-M Camera. This adapter allows you to mount any Canon EF or EF-S lens to a Canon EOS-M camera. With an EF or EF-S lens mounted to a Canon EOS-M camera using this adapter, all automatic functions, such as auto focus and auto exposure, are available and fully operational. A removable tripod mount collar with a ¼" socket is included. 2 CONTENTS INCLUDE • Vello LAE-CM-CEF Auto Lens Adapter - Canon EF/EF-S Lens to Canon EOS-M Camera • Front and rear caps • Removable tripod mount collar • User manual 3 INTRODUCTION The Vello Auto Lens Adapter – Canon EF/EF-S Lens to Canon EOS-M Camera can expand the arsenal of lenses for your Canon EOS-M camera using lenses you already own. With this adapter, you can mount any Canon EF or EF-S lens to a Canon EOS-M camera. Just attach the adapter to your EF or EF-S lens, then mount the lens and adapter to your Canon EOS-M camera. 4 When using an EF lens, there will be a crop factor of 1.6x, so that the apparent focal length of the lens will be 1.6x of the actual focal length. With EF-S lenses, there is no apparent change in the focal length. All camera functions will operate normally, including auto focus, auto exposure, and touch-screen modes. -
Ground-Based Photographic Monitoring
United States Department of Agriculture Ground-Based Forest Service Pacific Northwest Research Station Photographic General Technical Report PNW-GTR-503 Monitoring May 2001 Frederick C. Hall Author Frederick C. Hall is senior plant ecologist, U.S. Department of Agriculture, Forest Service, Pacific Northwest Region, Natural Resources, P.O. Box 3623, Portland, Oregon 97208-3623. Paper prepared in cooperation with the Pacific Northwest Region. Abstract Hall, Frederick C. 2001 Ground-based photographic monitoring. Gen. Tech. Rep. PNW-GTR-503. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 340 p. Land management professionals (foresters, wildlife biologists, range managers, and land managers such as ranchers and forest land owners) often have need to evaluate their management activities. Photographic monitoring is a fast, simple, and effective way to determine if changes made to an area have been successful. Ground-based photo monitoring means using photographs taken at a specific site to monitor conditions or change. It may be divided into two systems: (1) comparison photos, whereby a photograph is used to compare a known condition with field conditions to estimate some parameter of the field condition; and (2) repeat photo- graphs, whereby several pictures are taken of the same tract of ground over time to detect change. Comparison systems deal with fuel loading, herbage utilization, and public reaction to scenery. Repeat photography is discussed in relation to land- scape, remote, and site-specific systems. Critical attributes of repeat photography are (1) maps to find the sampling location and of the photo monitoring layout; (2) documentation of the monitoring system to include purpose, camera and film, w e a t h e r, season, sampling technique, and equipment; and (3) precise replication of photographs. -
Save on Gear. Splurge on Pizza!
STUDENT DISCOUNTS Save on gear. Splurge on pizza! I AUGUST 2015 Living Light Kit ©Tristan Shu, All Rights Reserved The Quadra Living Light Kit with Lead Battery, S Head and Transmitter was put together by Elinchrom to offer on the go photographers a turnkey location lighting solution. The kit includes the 400Ws Quadra Hybrid RX Pack, a lead-gel battery, multi-voltage charger, 8.2’ flash head cable, sync cable, and an ELS Transmitter Speed for remote triggering of the flash. EL10430.1 The pack has a built-in ELS Skyport Receiver with 8 channels that can handle 4 distinct groups of flashes and not only allows you to trigger Quadra Living Light Kit with Lead your pack at distances up to 393’ but gives you control of power, on/ Battery, S Head and Transmitter off, modeling light functions and HyperSync activation. Free software Street 999.00 for Mac and PC computers is available with the transmitter to add EDU $799.00 Includes: additional features as they become available. Add an optional USB 1x – Quadra Hybrid Pack with Lead-Gel Battery Wi-Fi module for computer control and software that allows you to 1x – RQ Hybrid Standard Head use specially designed apps that allow full remote control via your for 1x – Quadra 8.2' Head Cable iPhone, iPad or iPod Touch. 1x – ELS Skyport Speed Transmitter 1x – Lead-Gel Charger 1x – 16.4' Sync Cord PhotoVideoEDU.com 2 Prices and specifications are subject to change without notice Portable & Compact Lighting Kits & Accessories EL10414.1 EL26342 EL10287.1 Quadra ELB 400 Twin Quadra Reflector Ranger RX Speed AS - Action Heads To Go Kit Adapter MK-II A Head Case Kit EDU $2090.00 Street 2,559.00 EDU $80.00 Street 99.00 EDU $2,367.03 Street 2,959.99 Includes: Enables photographers to use any accessory Includes: 2x – Action Heads with Cables of the Elinchrom range such as Rotalux and 1x – Ranger RX Speed AS 1x – ELB 400 with Battery Litemotiv softoxes or any other EL accessory 1x – Ranger A Action-Head 1x – EL Skyport Transmitter SPEED on the Quadra flash heads. -
AG-AF100 28Mm Wide Lens
Contents 1. What change when you use the different imager size camera? 1. What happens? 2. Focal Length 2. Iris (F Stop) 3. Flange Back Adjustment 2. Why Bokeh occurs? 1. F Stop 2. Circle of confusion diameter limit 3. Airy Disc 4. Bokeh by Diffraction 5. 1/3” lens Response (Example) 6. What does In/Out of Focus mean? 7. Depth of Field 8. How to use Bokeh to shoot impressive pictures. 9. Note for AF100 shooting 3. Crop Factor 1. How to use Crop Factor 2. Foal Length and Depth of Field by Imager Size 3. What is the benefit of large sensor? 4. Appendix 1. Size of Imagers 2. Color Separation Filter 3. Sensitivity Comparison 4. ASA Sensitivity 5. Depth of Field Comparison by Imager Size 6. F Stop to get the same Depth of Field 7. Back Focus and Flange Back (Flange Focal Distance) 8. Distance Error by Flange Back Error 9. View Angle Formula 10. Conceptual Schema – Relationship between Iris and Resolution 11. What’s the difference between Video Camera Lens and Still Camera Lens 12. Depth of Field Formula 1.What changes when you use the different imager size camera? 1. Focal Length changes 58mm + + It becomes 35mm Full Frame Standard Lens (CANON, NIKON, LEICA etc.) AG-AF100 28mm Wide Lens 2. Iris (F Stop) changes *distance to object：2m Depth of Field changes *Iris：F4 2m 0m F4 F2 X X <35mm Still Camera> 0.26m 0.2m 0.4m 0.26m 0.2m F4 <4/3 inch> X 0.9m X F2 0.6m 0.4m 0.26m 0.2m Depth of Field 3.