PenCam Comparison

All the buzz about the Aiptek PenCam SD at WalMart has gotten me interested in doing aerial imaging. I'm not sure which would be better. Here is a comparison of the Mini PenCam 1.3 and the PenCam SD.

Mini PenCam 1.3 PenCam SD ---------------- ---------------------- Format Vertical Horizontal Max Resolution 1248x960 1280x1024 Memory 16MB SDRAM for movies 8MB SDRAM (stills only) 16MB Flash for stills SD slot up to 128MB, not inc.

CAPACITY Internal Memory Internal Memory Stills ~50 @ 1248x960 ~10 @ 1280x1024 (SDRAM) ~160@ 640x480 ~40 @ 640x480 Movies ~30 sec@10 fps 624x480 None ~120 sec@10 fps 304x240 None 128MB SD Card Stills ~160 @ 1280x1024 (SDRAM) ~640 @ 640x480 Movies ~10 min. @ 640x480 6-8 fps ~40 min? @ 320x240 8-10 fps

Size 1.3"x1.22"x3.54" 3.9"x1.7"x1.4" Weight w/o btty 47.5g 51.2g Price $49.99 (Aiptek refurb) $29.99(WalMart) +$40 SD Card

Considerations

---------------

1) Usage: I mainly fly single-engine black-powder rockets, so small size and weight is important. 2) Cost: As a terminal cheapskate, I am looking to minimize my costs. 3) Because of (1) and (2) above, I'd prefer to have a self-contained unit (e.g. not require AYUCR controller). 4) I'm mostly interested in movies, but might want to try some stills. For starters, can use the built-in 10 sec timer. Someday I might cobble together my own multi-shot timer circuit.

Pros/Cons of each

----------------- Mini Pencam 1.3

  • Vertical format: No need to rotate images.
  • Smaller
  • Lighter
  • Can do movies with built-in memory
  • More stills with built-in memory

- Shorter video record time than SD w/128MB card

+/- More expensive for camera only, but cheaper than SD camera+memory card

PenCam SD

- Horizontal format: While still images are easy to rotate post-flight, videos will require a bit more work.

  • Slightly better resolution

- Need SD card to do movies, adds to price and weight

  • Much longer videos with SD card; much more than I need for one flight. Could put multiple flights on same SD card.
  • SD Video memory non-volatile.

It seems to me that for my needs, the Mini PenCam 1.3 would be better. Press the video record button, run away, and launch for a 30 second video. With the small engines I'm using, I'm not likely to need much longer to capture a complete flight anyway.

Am I missing something here?

-- Bob Cox

Reply to
Bob Cox
Loading thread data ...

If you are a crappy rocketfinder like me, then the first consideration should be cost, as in, what can you afford to lose? Lost 3 mid-power rockets in a row, the last 2 to CORN.

-- Joe "CORN is a four letter word" Michel NAR 82797 L1

Reply to
J.A. Michel

Reply to
Alex Mericas

FWIW I've got an SD card in my hand right here, and it weighs practically nothing. And, its a 256MB card, so its probably twice as heavy as a 128, right?

GC (__ (__ (_____ (______ TM (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (________ V1.64 (__ (__ (__ (__ (_____ (____ (__ (__ Freeware CP/CG Calculator (____ (______ (__ (c)1996 Gary A. Crowell Sr. snipped-for-privacy@cableone.net

formatting link

Reply to
Gary A. Crowell Sr.

Sounds like a good idea. I usually have a good bead on them when they come down, but I lose it over a hill or in the CORNfield.

-- Joe Michel NAR 82797 L1

navigational aids!

Reply to
J.A. Michel

Now if there was only a inexpensive way to do at least 480*480(svcd) or even 640*480 at 3 fps.

Ted Novak TRA#5512

Bob Cox wrote:

Reply to
the notorious t-e-d

er, make that 30 fps :)

Ted Novak TRA#5512

the notorious t-e-d wrote:

Reply to
the notorious t-e-d

Ok, you guys peeked my interest. I had glanced around for the pencam at Walmart once before but didn't see anything. But I had to go again tonite, and sure enuf, there was one. Shelf tag said trio, but the box was the SD; only one.

The sofware didn't install cleanly but with some extra plugging & unplugging I got it to work. This one was obviously a return, the cheezee batteries were installed and dead; so someone didn't have any luck with it. But it all seems to work for me.

It even didn't seem to mind my SanDisk 256MB SD card. I dunno how much space it was actually seeing, but it put a 6MB movie on the card in addition to the 135MB of music and files that were already on the card. The card and avi file were readable just fine in my SD card reader. So, I wonder if it will really use a

256MB card? I'll clear off the card & give it a try later.

That 256MB SanDisk card and a reader were $66 at ecost.com a couple of months ago.

One of the minuses Bob mentioned was the extra expense of the SD card, but I like the idea of the card, since its memory thats not tied up in a cheap camera all the time. Same card goes between my reader for carrying files between home & work, son's MP3 player, and wife's PDA, and now the pencam.

GC (__ (__ (_____ (______ TM (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (________ V1.64 (__ (__ (__ (__ (_____ (____ (__ (__ Freeware CP/CG Calculator (____ (______ (__ (c)1996 Gary A. Crowell Sr. snipped-for-privacy@cableone.net

formatting link

Reply to
Gary A. Crowell Sr.

:)

Gary, when can we get a board from you that writes one of those XGA CMOS devices to a SD at 30-60 FPS at full resolution? SD RAID?

Jerry

Reply to
Jerry Irvine

That's why I got an SD digital camera and at the time in local retail the largest card they had: 128mb.

Jerry

Reply to
Jerry Irvine

Ok, no guarantees, YMMV, but it sure looks like it uses the 256MB card just fine. It recorded 2 hi-res movies, one 180MB and one 70MB. My player says the long one is 17 minutes, but that sounds long - I thought it was only about 10 min when I took it. It also stopped recording by itself - I don't know why. The 70MB file plays for another 4 min., which sounds about right. I'll fiddle with it more this weekend. I'll probably never fly this, but I'm happy with it as something to fiddle with.

GC (__ (__ (_____ (______ TM (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (________ V1.64 (__ (__ (__ (__ (_____ (____ (__ (__ Freeware CP/CG Calculator (____ (______ (__ (c)1996 Gary A. Crowell Sr. snipped-for-privacy@cableone.net

formatting link

Reply to
Gary A. Crowell Sr.

Well, funny thing about that, I was thinking about cracking this open to see if it was a Micron sensor inside - Micron makes an inexpensive 1.3M sensor. And, the imaging engineering group is right down the hall - I've worked on some of their test cards. And, they *do* have some very high rate cmos sensors. Other than that tho, I haven't followed their work - will keep my eyes open tho.

GC (__ (__ (_____ (______ TM (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (__ (________ V1.64 (__ (__ (__ (__ (_____ (____ (__ (__ Freeware CP/CG Calculator (____ (______ (__ (c)1996 Gary A. Crowell Sr. snipped-for-privacy@cableone.net

formatting link

Reply to
Gary A. Crowell Sr.

If you make it or specify it for production, I'll sell it and as needed make it too.

We heed HI res HI rate video for rockets.

A prelaunch activation switch would be great.

Jerry

Reply to
Jerry Irvine

Gary, fly some funky rockets! Can I send you some?

Jerry

Reply to
Jerry Irvine

This was taken using an Aptek DV2 $79:

formatting link
quality is higher than the video. I used compression to reduce size for web showing. With a 128K and 256K card the camera can be left on for 30 and

60 minutes, respectively. Even if the rocket crashes, there is a high probability the card will survive. After stripping off the case, the unit is less than 3 ounces.

Arnold

Reply to
Arnold Roquerre

what we need is normal mpeg2 (dvd resolution) at the normal frame rate.

AVI is ok but direct to mpeg2 compliant file format would be nice. Burn direct to DVD without reencoding would rock.

Hell if you could make one that did mpeg1 with 48khz audio you could burn THAT to dvd as well without reencoding AND burn it to VCD

Reply to
Chris Taylor Jr

PolyTech Forum website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.