Hi I am looking for somebody to write a field of view calculator for a website. I can do the maths but the Java is not my thing.
I need a be page that does this...
So I have a list of Telescope makers their telescopes and the scopes aperture size and focal length. I also have a list of Camera makers, their cameras and the cameras x and y chip size and pixel size. I want a user to select a telescope maker from a dropdown and that to populate a drop down of telescope make by that maker on selecting that the aperture size and focal length is determined The same happens with cameras but we get the pixel the pixel scale and chip x & y size. There is a third dropdown that selects a focal length reducer or multiplier. This just changes the telescopes effective focal length. A forth drop down selects an image. The calculated field of view and pixel scale is displayed (I can provide the maths) The selected image is rescale to the right pixel scale and a rectangle is overlaid showing the calculated field of view. This image is displayed.
Note they are a number of sites doing something similar.
I expect that their might be some future development work once the site is running. This will be extra.
Abstract Textured Artwork Category: 3D Modelling, Adobe Illustrator, Photoshop, Art Consulting, Digital Art, Graphic Design, Illustration Budget: $30 - $250 USD
22-Jan-2026 16:56 GMT
Architectural Sections Drafting Category: 2D Drafting, 3D Drafting, AutoCAD, Building Architecture, CAD / CAM, Home Design, Kitchen, Millwork Budget: $25 - $50 USD
22-Jan-2026 16:56 GMT
Complete Classplus LMS Setup Category: Content Management System (CMS), Data Integration, HTML, MySQL, Payment Gateway Integration, PHP, Project Management, Web Design Budget: ₹12500 - ₹37500 INR
22-Jan-2026 16:55 GMT
Data Entry Specialist Needed Category: Data Analytics, Data Entry, Data Management, Google Sheets, Internet Research, Web Search, WordPress Budget: $25 - $50 USD
Photograph & Upload Zomato Menu Category: After Effects, Image Processing, Lighting Design, Menu Design, Photo Editing, Photography, Photoshop Budget: ₹600 - ₹1500 INR
22-Jan-2026 16:55 GMT
Email Data Extraction and Automation Category: Automation, Data Extraction, Data Integration, Data Processing, Data Scraping, Email Handling, Excel, Make.com, PHP, Web Scraping Budget: £20 - £250 GBP
Accurate Bank Data Entry Category: Bookkeeping, Data Analysis, Data Cleansing, Data Entry, Data Extraction, Data Management, Data Processing, Excel, Excel VBA, PDF Budget: $15 - $25 USD
Google Ads Suspension Recovery Category: Account Management, Advertising, Computer Security, Digital Marketing, Google Ads, Internet Marketing, Marketing, SEO Budget: $10 - $30 USD
22-Jan-2026 16:53 GMT
Engaging Scripts for Five Videos Category: Audio Production, Audio Services, Content Writing, Editing, Proofreading, Script Writing, Video Production, Voice Talent Budget: $15 - $25 USD
22-Jan-2026 16:52 GMT
WhatsApp Purchase Tracking for Meta Ads Category: API Development, Data Integration, Linux, Node.js, Payment Processing, PHP, Python, Software Architecture Budget: ₹600 - ₹1500 INR