• Welcome Guest! If you are already a member of the BMW MOA, please log in to the forum in the upper right hand corner of this page. Check "Remember Me?" if you wish to stay logged in.

    We hope you enjoy the excellent technical knowledge, event information and discussions that the BMWMOA forum provides. Why not take the time to join the club, so you can enjoy posting on the forum, the club magazine, and all of the discounts and benefits the BMWMOA offers?

    Want to read the MOA monthly magazine for free? Take a 3-month test ride of the magazine; check here for details.

  • NOTE. Some content will be hidden from you. If you want to view all content, you must register for the forum if you are not a member, or if a member, you must be logged in.

image quality ?

gsjay

Active member
Ok, got these choices on my image quality settings

SHQ 3072x2304
HQ 3072x2304
SQ1 2048x1536
SQ2 640x480
16:9 1920x1080

can someone explain these to me? I realize the higher the resolution the better the shot, but if all I'm going to do is print snap shots and post to the web which should I choose?

I'm using a 256 mg card.

thanks,
jason
 
Bigger IS Better

It's a great question, Jason. I hope several others will chime in here.

The numbers refer to the size of the image measured in pixels. Click here for a comprehensive discussion of image size.

I vote for shooting the largest, highest quality image at all times. The image quality is better, even when printing small or viewing on a screen. In addition, you never know when you are going to create art or capture that once-in-a-lifetime image.

Apparently SHQ is "super high quality" and HQ, well, you can see. Perhaps it's less compression? The difference will be negligible, but real nonetheless. Probably most apparent in small details like highlights.

Your 256mb card is too small. Invest in a larger one--or two. I recently bought a 4gb card (Sandisk Extreme III) for $50. Memory is cheap when compared to storage quantity and image quality.
 
The bigger the file size the longer it takes the cam to process the image (especially in jpg).

If you're shooting fast moving subjects it will slow you burst rate.

I agree with Tom on the larger disk necessity
 
The bigger the file size the longer it takes the cam to process the image (especially in jpg).

If you're shooting fast moving subjects it will slow you burst rate.

I agree with Tom on the larger disk necessity

That's a really good point. If you can (and should) shoot in TIFF or RAW (little or no compression) that slows down noticeably.

I can shoot 6.5 frames per second in RAW with my DSLR, but I can only shoot one every two seconds with my compact. A lot has to do with the processor--one of the many reasons that some cameras are so danged expensive.
 
There is also a difference in speed of the memory cards ability to load images. The newer cards are available in faster loading speeds. Most likely due to increased density of the circuitry, but don't quote me on that.

Bottom line is there are a number of factor involving image capture speeds, but I too agree larger images sizes are better and with memory costs being what they are, get at least a one or two gig card.

RM
 
Take a shot of a static scene in each mode. Print them and decide what works best for you. :dunno
 
Ok, got these choices on my image quality settings

SHQ 3072x2304
HQ 3072x2304
SQ1 2048x1536
SQ2 640x480
16:9 1920x1080

can someone explain these to me? I realize the higher the resolution the better the shot, but if all I'm going to do is print snap shots and post to the web which should I choose?

I'm using a 256 mg card.

thanks,
jason

As others have said these refer to the number of pixels used to capture an image. This translates into larger files with better detail (resolution). Memory cards are very cheap, so the general recommendation is to always shoot in the largest mode available. This gives you the optimal image your camera can take. Thus you can make large large scale prints for example.

If after you've taken the shot you decide you only want it for screen use or email you can easily downsize to a lower and appropriate quality. Remember you can't increase the resolution afterward but you can always reduce it.

Finally, your camera probably creates a basic 16x12 ratio image. This is standard for most compacts. You have the option of 16x9 images, the ratio used in HD TV screens and many newer monitors.

I would suggest you re-read your camera's manual to familiarize yourself not only with image size and compression but also other functions that can help you make better pictures. There are many, many sites on the web with lots of good advice as well. One I tend to return to frequetly is:

www.dpreview.com

The forums on this site are a wealth of information and there some tutorials as well, plus the best equipment reviews on the 'net.

Have fun.

alan.
 
I don't believe the pixel density/inch (resolution) is impacted by the size of the image.

That may be another setting on your cam (fine?)
 
I don't see the point of taking pictures in anything but the highest resolution your camera supports. You may not need the larger sizes now, but you might wish you had them ten years from now.
 
I don't see the point of taking pictures in anything but the highest resolution your camera supports. You may not need the larger sizes now, but you might wish you had them ten years from now.

Ah yes, why didn't I learn this lesson before taking 2,000+ pictures this summer. I kick myself a million times, I saved out pictures at 680 to post online, and failed to save the larger shot, which was not even the highest res. :banghead :banghead
Get your camera now and set it to the highest resolution. If you don't have at least 1G of memory, go spend the $20 bucks.

I guess I'll just have to go back and get some of those shots again.
 
Maybe this will help:

SHQ 3072x2304 will print at aprox. 8" X 10"

HQ 3072x2304 will print at aprox. 8" X 10" (slightly more compression then SHQ may or may not be noticeable @ 8X10 but probably not at snap shot sizes like 4x6)

SQ1 2048x1536 will print at aprox. 5" X 7"

SQ2 640x480 will print at aprox. 1.5" X 2" Only good for the web ie. viewing on your computer where it may fill a good portion of your monitor depending on the monitors size and resolution the average monitor displays at 800X600 although thats quickly changing.

16:9 1920x1080 will print at aprox. 6.5" X 4"

All print sizes are without any cropping

The only disadvantage to shooting at the highest resolution is memory (which is relatively cheap). With that said, if it's highly unlikely you will ever enlarge a pic to 8X10 as in you have never done so before. And really all you want is snap shots I would shoot at HQ save some space on your card as well as your hard drive and still have the option of printing larger if that one award winning shot just happens to come along.

IMHO
Bill
 
You know, another point to consider. . . .

I think one of the reasons that the Photo Phorum exists is to guide people to taking better pictures with an eye toward publishing some in the ON magazine.

If you ever want a photo published in a mainstream magazine, you'll need very high resolution and they generally prefer a RAW image. Many compact cameras don't shoot in RAW, so in this case HQ jpeg is best. I recently bought a compact camera, one of the sole reasons for which was that it did shoot in RAW.

For years I shot everything on highest-quality jpeg, but now shoot everything--everything--in RAW. This affords me not only the largest, HQ image, but the maximum latitude in post-processing.

I recently attended a lecture given by two of our hometown newspaper photographers. They shoot everything on HQ jpeg. They are forbidden to manipulate the images to any great degree, they have to get through the editing quickly, and they need the ability to shoot dozens of shots in a period of seconds. In addition, newsprint is grainy to begin with.

But for me, it's RAW all the way, baby.
 
You know, another point to consider. . . .

I think one of the reasons that the Photo Phorum exists is to guide people to taking better pictures with an eye toward publishing some in the ON magazine.

If you ever want a photo published in a mainstream magazine, you'll need very high resolution and they generally prefer a RAW image. Many compact cameras don't shoot in RAW, so in this case HQ jpeg is best. I recently bought a compact camera, one of the sole reasons for which was that it did shoot in RAW.

For years I shot everything on highest-quality jpeg, but now shoot everything--everything--in RAW. This affords me not only the largest, HQ image, but the maximum latitude in post-processing.

I recently attended a lecture given by two of our hometown newspaper photographers. They shoot everything on HQ jpeg. They are forbidden to manipulate the images to any great degree, they have to get through the editing quickly, and they need the ability to shoot dozens of shots in a period of seconds. In addition, newsprint is grainy to begin with.

But for me, it's RAW all the way, baby.



And this takes us back to the speed of your memory card. Low compression (high quality) files - and especially RAW files - are large and take much longer to save. There are a number of sites you can Google up with real world speed tests of different memory cards. At the least, check the manufactures web site for their performance claims. Each camera has max transfer speed, so you'll want a card at least that fast.
 
Maybe this will help:

SHQ 3072x2304 will print at aprox. 8" X 10"

HQ 3072x2304 will print at aprox. 8" X 10" (slightly more compression then SHQ may or may not be noticeable @ 8X10 but probably not at snap shot sizes like 4x6)

SQ1 2048x1536 will print at aprox. 5" X 7"

SQ2 640x480 will print at aprox. 1.5" X 2" Only good for the web ie. viewing on your computer where it may fill a good portion of your monitor depending on the monitors size and resolution the average monitor displays at 800X600 although thats quickly changing.

16:9 1920x1080 will print at aprox. 6.5" X 4"

All print sizes are without any cropping

The only disadvantage to shooting at the highest resolution is memory (which is relatively cheap). With that said, if it's highly unlikely you will ever enlarge a pic to 8X10 as in you have never done so before. And really all you want is snap shots I would shoot at HQ save some space on your card as well as your hard drive and still have the option of printing larger if that one award winning shot just happens to come along.

IMHO
Bill


Note too thou that final print size is also a function of image and print DPI, I believe most commercial houses default to 300 DPI. You can go lower, in part it depends on viewing distance, the greater the distance the lower effective DPI needed to maintain an "acceptable image".

I've printed some nice shots at 150 DPI at a 13x19 image size that I know will be displayed such that minimum viewing distance will be 2 or more feet and it looks very good and crisp.

In the end thou I think it can be safe to say go for the biggest imge size/resolution you can where possible.

RM
 
I don't believe the pixel density/inch (resolution) is impacted by the size of the image.

That may be another setting on your cam (fine?)

yes quite right, most cameras I've seem/used/played around with have several differant options for any given image size something like:
Fine, Standard and Low
or

Superfine, fine and standard

(or the equvilant).

It can get a bit confusing since it would seem that at a given size the density of the pixel would/should be the same. ???
Yet, say with my G9, (which I happen to have sitting here on my desk) for an image size setting of "M3" it has "Superfine, Fine and Standard" options for picture quality yet they are all listed as 1200x1600 image size, for the M3 setting.

So for any given image size go for highest quality option available.

RM

(ok, now *I'm* confused!:laugh )
 
...But for me, it's RAW all the way....

I guess I don't really see the point in saving images in RAW versus JPEG format. I've looked at the different images produced and for my purposes JPEG images are quite nice and adequate. In particular, I like being able to take the chip out of the camera and directly upload the image to the computer and view it without needing to do anything eles.

I've asked several professional photographers and of those I've spoken with they use JPEG as the format in which images are saved.

If there is some compelling reason that illustrates quality of image versus ease of use / viewing I'd like to know of it. I'd like to see some graphic examples that portray the advantages of RAW versus JPEG.
 
I guess I don't really see the point in saving images in RAW versus JPEG format. I've looked at the different images produced and for my purposes JPEG images are quite nice and adequate. In particular, I like being able to take the chip out of the camera and directly upload the image to the computer and view it without needing to do anything eles.

I've asked several professional photographers and of those I've spoken with they use JPEG as the format in which images are saved.

If there is some compelling reason that illustrates quality of image versus ease of use / viewing I'd like to know of it. I'd like to see some graphic examples that portray the advantages of RAW versus JPEG.

Well I think that to a certain extent its a personal choice, many on dgrin swear by RAW while other are quite happy with jpeg. there are pro's and cons to both, for me RAW is nice because I have greater control over such things as color balance, if I forget to set it right I can correct it in RAW which I can't do in jpeg, IN RAW there is no (or very little) pre-processing going on IN CAMERA and no compression so no data loss. the down side is that every photo has to be run thru some sort of front end to share or print it, thou you can see RAW files even in the XP windows explorer, or at least I can see both Canon and Nikon ones with the proper drivers installed from the disks supplied. they are somewhat larger in size as well since there is no data tossed out so they do take a bit longer to load.
jpegs do load faster can be viewed directly on any system and as you say can often be used right away without anything more than downloading.

I'm not sure how we could do a comparison here as you can't display RAW files in this format. I could try to take some of the files I did just a few weeks ago when shooting in both RAW and Jpeg formats in camera of the same scene from each single shot taken and see if after conversion to jpeg of the RAW if there is a noticeable diferance without making any changes to either, as I remember there was some and interestingly enough some looked better in jpeg and some looked better in RAW after conversion. I am not sure why or what factors effected them thusly thou.

RM
 
:nod When it comes to printing, low rez images look much worse than they do on a nice backlit computer screen.

Yeah, I didn't anticipate getting a 1440 X 900 screen either!
The pics for stories has a been a problem. I wanted to put together a Wyoming story for ON but have NO high res pics of the area, so I just posted in on the forum.
 
RAW vs JPEG

I usually just use Microsoft's Photo Editor to crop and do any editing of photos. My goal is mostly to get an image suitable for inclusion in a technical report, proposal, or powerpoint presentation.

This simple editing program has a balance and auto balance feature that has thus far proved adequate. I'm just pleased with the images that I get and the speed with which the pictures are available (no more need for photo processing by a lab or darkroom). I do tend to take a LOT more photos with the digital camera than I ever did with film cameras. So it is easier to toss the pictures that are unacceptable.

Even though my digital cameras have automatic features I like to play with the settings and bracket important shots. Sometimes though I miss using my F3. I used it for a far longer interval than any other cameras, but my digital cameras have taken more pictures.
 
Back
Top