Big Sale! 15% Off Prime Products
Use Coupon Code SCKPrime
Hurry! Sale Ends Monday
Avatar

Please consider registering
Guest

Search

— Forum Scope —




— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

Register Lost password?
sp_Feed sp_TopicIcon
MP's v Zoom question.
sp_NewPost Add Reply sp_NewTopic Add Topic
Avatar
Not Sure
Member
Members
Forum Posts: 5
Member Since:
May 6, 2014
sp_UserOfflineSmall Offline
1
May 6, 2014 - 2:40 am
sp_Permalink sp_Print sp_QuotePost
sp_ReportPost

Hi again, another Newbie question.

Given the choice of 1.3MP x 20 zoom IP camera such as Product# CVIPTZ-EL1MPL20X

or

2MP x 12 zoom such as Product# IPPTZ-EL2MPL12X-Mini-O

 

Based on MP’s and zoom only, what would be your choice for image quality when viewing the far distance at maximum Optical Zoom?, ie what ccombination would “reach further”

Also, does the increased pixel count of the 2MP camera help with further digital zooming?

Many Thanks

Avatar
Ryan
Moderator
Moderators

Members
Forum Posts: 72
Member Since:
November 21, 2012
sp_UserOfflineSmall Offline
2
May 6, 2014 - 9:58 am
sp_Permalink sp_Print sp_QuotePost
sp_ReportPost

Hello and welcome to the forum. 

 

That is a tough question, because you are not comparing apples to apples.  You are trying to compare a 12 times zoom to a 20 times zoom.  The 20 times zoom will give you a greater distance any day of the week.  Even with the higher MP on the camera, your digital zoom will pixelate well before the optical zoom will give out on the given cameras.

 

Now if you are talking about our IPPTZ-EL2MPL20X vs. CVIPTZ-EL1MPL20X, you are starting to compare apples to apples.  Both of these cameras are producing HD video and have 20 times optical zoom.  Now the 2MP is going to produce a 1080P image where the 1MP camera is going to produce a 720P image.  The clarity will be similar, but the 2MP camera will give you greater digital zoom after the fact. 

Avatar
Not Sure
Member
Members
Forum Posts: 5
Member Since:
May 6, 2014
sp_UserOfflineSmall Offline
3
May 6, 2014 - 9:26 pm
sp_Permalink sp_Print sp_QuotePost
sp_ReportPost

Thanks for your reply Ryan,

So what about say a 3MP x 20 zoom compared to a 2MP x 30 zoom. At full zoom, each, in my simplistic thinking will give the same pixel density on a subject ie 3×20 = 60, and 2×30 = 60.

This at first glance seems similar, but would there be a difference taking it further, and using digital zoom?

Does the higher 3MP help to “reach” further, or has that already been accounted for as they both give 60 whatnots?

Many thanks

Avatar
Brad Besner
Boca Raton, Florida
Admin
Forum Posts: 202
Member Since:
March 9, 2013
sp_UserOfflineSmall Offline
4
May 6, 2014 - 10:55 pm
sp_Permalink sp_Print sp_QuotePost
sp_ReportPost

If you had the 2MP with 30X Zoomed in all the way then technically yes, they would offer similar detail. However, that would be an uncommon scenario. In my opinion a 3MP x 20 Zoom would offer greater detail in most scenarios. 

Avatar
Not Sure
Member
Members
Forum Posts: 5
Member Since:
May 6, 2014
sp_UserOfflineSmall Offline
5
May 8, 2014 - 9:41 am
sp_Permalink sp_Print sp_QuotePost
sp_ReportPost

Thanks Brad.

I’m wanting to use the camera for fire spotting in the summer here and want to check the far hills, some 20 km away. I need to zoom in as far as possible.

 

Iv’e looked deeper into the situation and have formed a different conclusion. It boils down to pixel count together with H/V ratio of the formats.

The extra 1 MP of the 3MP is mostly taken up in changing the format from 16:9 to 4:3. (1920×1080 vs 2048×1536)

ie it is only 128 pixels wider, yet a full 456 pixels higher.

If we crop the top of the 3MP image to make the same format of 16:9 we get 2048×16/9= 1152

so 2048×1152 = 2.36 MP.

2.36x20zoom = 47.2

2×30 = 60

Therefore, I think I’m better off with the 2 MP at 30 x zoom, plus the format of my screen is 1920 x 1080, so visually I  see the full monty.

Many thanks

Forum Timezone: America/New_York

Most Users Ever Online: 65

Currently Online: yapedbup
18 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Top Posters:

Techpro Security: 404

shockwave199: 179

tubac: 163

Gilberto: 150

MrDeepFreeze: 135

javajeff: 132

Jer7of9: 122

Night Hawk: 98

West Coast Jones: 66

ShawnInFL: 64

Newest Members:

Jeniferunich

BranfordAdorunund

sanhvcsar

AnanayaAdorunund

HeatherKex

WernaxeaAdorunund

PatricaInfup

KayekedAdorunund

LeppieAdorunund

AuranomAdorunund

Forum Stats:

Groups: 5

Forums: 28

Topics: 1076

Posts: 4975

 

Member Stats:

Guest Posters: 19

Members: 3026

Moderators: 15

Admins: 4

Administrators: Damon Delcoro, Brad Besner, Jose Malave, Gabe Garcia

Moderators: Dan Maresca, Ryan, Zeke Richey, Jorge Nava, Matthew Ernst, LittleBrad, Heath Phillips, Ultraweb Marketing, Dan Millard, Eric Wilson, Brian Lee, Michael, Ted, mwhite, Julius Dilka