k_jensen

Hello guys, We are having a discussion if it is necessary to adjust the focus with a filter on a dome camera. I mean, we cannot adjust the backfocus - why use a filter then? Any arguments? Best regards Kenneth

It started with a kiss, never thought it would come to this... initally, I just wanted to know if you guys used a ND filter to focus a domecamera. We had a little discussion about it. wow, we have been around - thats nice with a forum like this.

Great feature, Panasonic has the same. BUT not all customers want to pay "over price" for Bosch. Many other cheaper cameras deliver same picture quality at a much lower price. Then you need to Backfocus.

Wrong? DOF is big in bright light, and small in "no light" - that can not be wrong. I am a lucky man!

the dome do not have abf. Only body camera CP-480

Panasonic Vandal proof dome SDII chip - day/night, cant remember the number CW-474 maybe. Im sure they use IR corrected lenses. Kenneth

ok, thats why "I cant get it" - nomally you have a bigger DOF in bright light. So if you get the focus right in bright light, then it would be right when the light drops. See my picture linke above. I agree that it is much easier to focus with a filter - but not required. Kenneth

he he, could do that. Kenneth

Hi Cooperman, thank you for your reply. I can see your point, but are still not fully convinced Maybe I don’t understand it Picture a room with bright sunlight. In the middle, I have a chair to focus on. If I focus without filter I have a focused picture with bright sunlight. If the light drops, the DOF moves, I agree. But it will only be front DOF and back DOF that moves? Like this: http://www.donaldnealmckay.com/sharedImages/DepthOfField.gif I agree that it could be easier to make correct focus with a filter, but it can be done without! regards Kenneth

Hi rory, But if the lens is IR corrected why should the forcus change? If I want to focus on a specific spot, and I get the correct focus under normal light conditions - then I will still get the focus in low light conditions. Correct? Best regards Kenneth

ok, thanks. Regards Jensen

Hello there, Anyone with experience from VEO ip cameras - good or bad. Are they only DIY, or could they be used in small CCTV installations? Regards Jensen

I have never tried the D-Link, but what I have read and heard, it does not get the best recommendations. Regards Jensen

what if it is in a shop with normal lighting conditions and a dedicated video network? Any drawbacks besides low lux and framerate? Regards Jensen

I have had problems with GV800 same way as you. But i just powered off the recorder and turned it back on. I believe GV has problems detecting new cameras. Regards Jensen

http://www.americandynamics.net/home/default.aspx Regards Jensen

I have had very good experiennce with the Panasonic. Easy to install, good Wide Dynamic Range. No possibilities to use a body camera instead of dome? If possible, I would go for the Panasonic CP484 with WDR and auto back focus. You can also make manual adjustment of the shutter speed (but no WDR then) Regards Jensen