I'm looking to buy a new lens for my Nikon D50. Right now I've got the Nikon Nikkor 28-80mm 1:3.3-5.6g -- you know, the kind that comes with the camera.
I'd like to get a telephoto lens for it (something with a top end of like 200 -> 300mm) but I'm not sure where to start. I know I want something with vibration reduction on it. But it looks like you can get such lenses for anywhere from $300 to $2000 or more.
ImageMagick: Which Resize Filter Should I Use? - UPDATED
Alright folks, I've been pretty unhappy with the filter I used to make thumbnails here on Photographica. Like Photoshop, the image library used here has many different algorithms that can be used to resize an image. Photoshop has three (Bicubic, Bilinear and "None" I belive), ImageMagick has more than a dozen. Some are quicker, some look better for enlargements, some look better for reductions. When there are a dozen to pick from, selecting the right one to be used for all image reductions on Photographica is a challenge!
Bottom line? I want you guys to help me pick the best filter to use for creating thumbnails on Photographica. The filter you pick will get used to resize your originals to whatever smaller image is required. What you are looking below at is a random image I picked out of my uploads, resized to "thumbnail size" (no greater than 175x175) using a variety of filters and than saved as a JPEG. Above each thumbnail is the name of the filter and the filesize of the generated image. Inside the full story, you will find the original image uploaded to Photographica.
Note: The samples are small for a reason. They are no bigger than the thumbnails found on any of your image pages . I want to find the best filter to use for taking your "normal sized" images and shrinking them into thumbnails. I might consider using different filters depending on the size, but for now lets just look at what happens when you resize a normal image (say 800x600) to a thumbnail (175x175).
If you want more examples of the filters available for use, somebody put together a page comparing all the filters available in ImageMagick . When looking at the linked page, note that I use a "Blur" of "1". If somebody can make the case for using a blur value of less than 1, I'm open to hearing it. Looking at the thumbnails on the linked page , a value of 0.8 or so might yeild higher quality results sharper results (but larger images).
New members, welcome!
Submit a story just once every 24 hours. We appreciate your enthusiasm, but the front page only holds 30 stories at a time. When you post, the story on the bottom drops to the second page, where it receives much less traffic. If you post two or three stories in a row, two or three stories will drop off the front page. Be nice to your fellow member and just post once per day. Remember, you can post any number of pictures within your post as you want.
Read the Help Page, and PREVIEW! If your picture is not appearing in your story as a popup when you Preview, it will not appear when you click Submit. You need to manually insert your photos into your story. You do this by choosing your photo from the dropdown menu to the right of the text body on the Submit New Story page. You can then change the words "Description_Here" to whatever you want to title your picture. Like this! Remember, you can Preview as many times as you need to--but you can Submit only once.
Read through the Q&A Section.You can read all the questions others have come up with by clicking on the Q&A link in the right-hand blue box on every page. There you can learn how editors delete your photos upon request, you can create avatars to show up when you make comments, and why the Photo Journals section is so cool. This site rewards exploration--no question is dumb, and no question hasn't come up before.
This is a community.The great thing about Photographica is its members and community. Don't just submit photos--comment on other members' work! The more feedback we get, the better photographers we'll all be.
Put your money where your pictures are.Help make this the best photo site on the web: Subscribe! You not only get access to cool features, you're helping with the administrative costs and doing your part. You'll be the among the first to try out new features as Cory implements them, too.
Have fun.Photographica is a rewarding site that encourages discussion, debate and, within reason, controversy. We're only as good as our members.
Questions?Contact info for your Editors is at the top of every page, by clicking the About link.
suspritzed diamagnetic synchronizing filter
- Has someone already taken the time to explain different filters? If so, could I have the link?
- If not, would any of our more "salty" photo-masters mind taking a minute and tapping out what filters a beginner (like me) should start with, and what filters one may grow into?
What are photologs for?
ASA vs ISO
Changes to the Site
Clearing your cache can often resolve quirky little problems you experience on this site, and all over the Internets for that matter, and is very easy to do...
- In Firefox: Click into the Tools menu, then select Options. Once the Options window opens, go into the Privacy tab, and click the Clear button next to Cache.
- In Internet Explorer: Click into the Tools menu, then select Internet Options. From there, locate the area right in the middle of the window that says Temporary Internet Files and click the Delete Files button.
As always...have fun and enjoi!
Another "Galleries" Q&A Post
When you go to that address, you will get an error about not having permission, or some such banter. Ignore it. Look on the right-hand side of the page...there you will see the old skool HTML help box (also a handy thing to look at sometimes), and below that you will see a list of your most recent uploaded images, and finally, a list of your most recent galleries! Keep that in mind, it's been helpful to me on more than one occasion!
why doesn't my picture appear?
We editors can delete the pix that don't show up, of course--I'm just lazy and am trying to save myself work.
How 'bout this weather we're having?
Private Message is the best way to make this type of request. PM links for each of us can be found on the Contact page (link at the top of every Photographica page). You are more than welcome to send a PM to any other Editor, but the 4 of us listed above are around a lot more often than the others.