No, it's not an error. What this display indicates, is the availability of the total number of photos you want to take. If the display says, "r06", then you are in JPEG Mode. If it says "r03", then you are either 1) in RAW Mode, or 2) have your Noise Reduction on (see FAQ #2). As you take a few photos in succession, you will notice the indicator drops by how many photos you took.

FAQ #2: My D100 says "r03". Why can't I get a higher display?

If you have a "r03" display, then you need to go into your CSM Menu, and scroll down to CSM #4, and turn LONG EXP. NR to "OFF". When you are in Noise Reduction Mode, your D100 buffer is literally cut in half.

FAQ #3: My D100 says "r04". Why not "r06"?

This is similar to the above situations. You are in RAW Mode, and this is the maximum amount of photos when in this mode. Also, if you had LONG EXP. NR set to ON, then this would display "r02".

FAQ #4: I'm getting an "eRR" message on my D100 LCD display. What do I do? This does happen, although rare. What you need to do, is press the Main Reset Button on the D100. This very small button is located where your mini-USB jack, AC Adapter jack, and Video-Out jack, are located. The Reset Button is positioned at the very top of all the other jacks.

Unfortunately, this is one of those cases where if pressing the reset button does not solve the problem, then you will need to send your D100 in to Nikon for repair. It is not known why the "eRR" is displayed or how a person could use the D100 in order for it to get that way. In time, we may know more.

FAQ #5: My D100 displays "fEE". What does this mean?

Another easily overlooked problem, but good news, because it is easily solved. The reason you are getting this error, is because you have not set your lens ring to its smallest aperture (highest number) rating. Many 35mm camera users have been perplexed by this little error because they are used to adjusting the aperture of the lens on the ring itself.

FAQ #6a: My D100 seems to always underexpose. Why? (Part 1)

It could be several things, but to begin to find out if it is you or the mechanics of the camera, we have to look at a few things. The Aperture Lever on your D100. Be sure it is correctly aligned so the lens makes a proper contact. Also, read my Aperture Lever Issue article. This explains the problem in more detail and has illustrations.

FAQ #6b: My D100 seems to always underexpose. Why? (Part 2)

If you shoot in "P" Mode, and it is an overcast day, or there are mostly dark clouds in the sky, you will have problems. The D100 (and any other digital camera actually) does not meter correctly when certain types of conditions happen. The clouds have to be fairly dark, and your shooting environment is most likely not that bright either. The D100 will kick into 1/60sec or even slower if you are in "P" Mode.

FAQ #7: My photos are blurry in some places. Why does this happen?

Of the many reasons for "blurry" or "soft" photos, one of the overriding reasons I find is that the subject did not have the correct DOF. Remember, the more DOF you have (by having a smaller aperture), the more subjects will appear in focus, regardless of distance between each other. For example, if you have a subject where the ears are not at the same distance from the camera, you need to stop-down your aperture (choosing a higher "f" number), which will make both ears appear in focus on the subject.

FAQ #8: I've tried taking RAW photos, but it takes ~40 seconds for each shot to write to my CF Card!

Your D100 is set to COMPRESSED NEF straight from the manufacturer. Pretty nice, huh? Well, not really. There is no reason whatsoever for a compressed NEF. Unless you like waiting about 40 seconds for the file to write.

Do the following:

1) Go into the menu with a little camera icon by it.
2) Select "RAW".
3) Move your arrow pad to the right.
3) You will probably see it is set to "Compressed".
4) Select "RAW NEF (Raw)".

Now take some RAW pics. You should be able to take one RAW and have it processed in 7sec.

FAQ #9: What is all of this lens nomenclature such as AF, AF-S, DX, AI-S, IF, ED, etc.?

To understand what all of those letters mean, go to the D100 FAQ: Nikon Nomenclature area. This area has a lot of info and more will be added.

FAQ #10: Does the D100 "feel" that much better with the MB-D100 Battery Grip?

Yes, it does. Those that say it doesn't help, have never owned one or instead, spent the $250 in Vegas--and lost. Not only is the D100 a better camera overall with this accessory, but battery life is quite amazing. Well, think about it. Instead of one EN-EL3, you now have two of them running the D100's power.

FAQ #11: How can light coming in through my viewfinder affect my photos?

To find out how an SLR really works, I suggest you do the following. Connect a lens to the D100, find a relatively bright light source, turn the camera around, viewing the light source from the end of the lens, rather than through the viewfinder. You should see the light source. Now, wave your hand in front of the viewfinder to verify you are seeing the lightsource via TTL (Through The Lens). The fact that you can see your subject through the viewfinder, also means the source can be viewed from the other end as well. This is a true SLR camera. And this is why SLR cameras give you the best reading/interpretation of your source. Why? Because you are seeing exactly what your lens is seeing.

FAQ #12: Should I purchase the AF-S 70-200G VR?

I have been asked this a lot. For a quick answer, I say, yes. There have been several people reporting problems, however, there have been several D100 owners who are very excited about the photos they are getting from a non-problematic 70-200 VR. My advice, is to try and purchase locally, and if you cannot, be prepared to ship the lens back to the online store if you experence problems.