mark Cooper
Forum Enthusiast
Anybody using 2x telephoto lenses on the 7i/ any prices? any pics?
Http: homepage.ntlworld.com/mark_cooper
new macro pics added
Coopes
Http: homepage.ntlworld.com/mark_cooper
new macro pics added
Coopes
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2x telephoto lenses
- Thread starter mark Cooper
- Start date
hey Coopes, i tried the Phoenix 2x, and it vignetted really bad at wide angle. at full tele, it still vignetted, but it didn't seem any better than using the digital zoom.
William West
Senior Member
Hawkeye:
Bryan Bigger's web site is not showing any reports on Phoenix's
add-on lens. If you e-mail Bryan, I'm sure he will post your
comments.
Bryan's "User Reports of Add-on Lens for 7/7i":
http://webpages.charter.net/bbiggers/DCExperiments/html/d7_add_on_lenses.html
Phoenix's add-on lens for digital cameras:
http://www.phoenixcorp.com/Lenses/Digital_Lens/digital_lens.html
List of Phoenix's dealers:
http://www.phoenixcorp.com/Dealer_Locator/Lenses_Locator/lenses_locator.html
William
Robin
Member
Anyone tested the Raynox lenses with the 7(i)?
On their website it looks like its 7(i) compatible... also they are fairly cheap.
http://raynox.co.jp/english/egindex.htm
On their website it looks like its 7(i) compatible... also they are fairly cheap.
http://raynox.co.jp/english/egindex.htm
Robert Sheldon
Senior Member
I have contacted the Raynox Engineering Dept and they say their lenses are NOT compatible with the D7, and I assume that would also apply to the D7i.
Bob Sheldon
--
Bob Sheldon
chuckstr89134
Well-known member
Hi Coopes
I am looking for 2x (or even better a 3x) also but I cannot find one locally to try on the camera. I am looking at the following and would appreciate any input from anyone who has tried them.
Kenko KUT-300 Hi - 3x found for $98 US
Kenko KVC-20 - 2x found for $83 US
Kenko VC-200 Hi - 2x found for $168 US
I know that the Olympus B-300 (2x) works well, but is pricey if you can find it.
Thanks
Chuck
--
My on line albums
http://www.hpphoto.com/home/viewownerdir.asp?owner=chuckstr89134
and
http://www.pbase.com/chuckstr89134
sinus007
Leading Member
Hi,
Unfortunately I don't have those kenko lenses to try. But I just looked at their specs and found that the first 2 are 37mm and 46mm, respect. Only the last one, V-C200HI, is 49mm, which might work.
AK
Unfortunately I don't have those kenko lenses to try. But I just looked at their specs and found that the first 2 are 37mm and 46mm, respect. Only the last one, V-C200HI, is 49mm, which might work.
AK
Tim Trzcinski
Well-known member
The KUT-300 Hi vignettes badly at even 200mm. The others are not sharp edge to edge. Your best economical bet (and maybe best bet, period) is the Olympus A-200. Keep a constant monitor on the B&H Photo website and get it for $84.95 when it is in stock.
Laird Williams
Active member
Coopes,
I have a 7i and two different telephoto lens attachments for it. I have done a pretty extensive analysis that I think you might be interested in.
Equipment:
----------------
D7i
Vision Optics Titanium 2x (abbrev. "VO")
Olympus A-200 1.5x (abbrev. "OLY".)
Method:
------------
Stood approximately 10' from a light grey wall with a round doorknob bumper on it. (Yeah. Ok...I hear you snickering. That's one UGLY photo subject) Centered frame on the doorknob bumper and shot the following:
1 - At 28 (full wide)
2 - At 200 (zoomed in all the way)
3 - At 200 with Digital Zoom
4 - At 200 with VO
5 - At 200 with OLY
I then pulled these pix into photoshop, and measured three things:
The vertical pixel dimension of the bumper
The effective resolution of the zoom with all vignetting cropped out (good resolution)
The effective resolution of the zoom with correctable vignetting remaining, but all other vignetting cropped out (correctable resolution)
Data
------
Shot: 28mm (full wide-angle)
Good Resolution: 2560x1920
Correctable Res: 2560x1920
Subject Dimension: 47
Effective Multiplier: 1x
Shot: 200mm
Good Resolution: 2560x1920
Correctable Res: 2560x1920
Subject Dimension: 310
Effective Multiplier: 6.5x
Shot: 200mm + Digital Zoom
Good Resolution: 1280x960
Correctable Res: 1280x960
Subject Dimension: 310
Effective Multiplier: 6.5x
Shot: 200mm + VO
Good Resolution: 1600x1200
Correctable Res: 2048x1536
Subject Dimension: 390
Effective Multiplier: 8.3x
Shot: 200mm + OLY
Good Resolution: 2048x1536
Correctable Res: 2560x1920
Subject Dimension: 432
Effective Multiplier: 9.2x
Observations:
------------------
1) Apparently, our friends at Minolta "rounded" 6.5x up to 7x for marketing purposes. Further, this is 6.5x from the wide angle position, and not the normal 50mm 1-1 focal length. The approximate multiplier of the D7i at full zoom to what you actually see is only about 4x.
2) Despite the fact that the VisionOptics is a "2x" multiplier, and the A-200 is a "1.5x" multiplier, the A-200 has more magnification. In fact, it looks as though the VO is a "1.25x" unit, and the A-200 is a "1.4x" unit (+ change). I don't mean to be hard on people, but the A-200 performance is "close enough" to what is stated. IMO, the VO is a joke.
3) The vignetting and distortion on the VO was pretty bad, but even cropped images were better than the digital zoom on the camera. That said, I don't think I get much out of it. It is going to a friend's camcorder today.
4) I saw no significant change in vignetting in the A-200 from about 125mm to 200mm - so it is much more flexible from a framing standpoint.
Conclusions:
----------------
The A-200 is vastly superior to the VO, and adds a lot of value to the D7i. The VO adds very little value.
With the A-200, my birdfeeder shots will be that much easier to get now - and a slight crop will leave me with 3.2 megapixel images with no edge distortion or vignetting. That's really pretty nice.
I ordered the A-200 from B&H on Sunday. I paid for overnight shipping and it arrived this morning. I had no problems with them.
I can't wait to get out of work and go "play" in the yard this evening.
I have a 7i and two different telephoto lens attachments for it. I have done a pretty extensive analysis that I think you might be interested in.
Equipment:
----------------
D7i
Vision Optics Titanium 2x (abbrev. "VO")
Olympus A-200 1.5x (abbrev. "OLY".)
Method:
------------
Stood approximately 10' from a light grey wall with a round doorknob bumper on it. (Yeah. Ok...I hear you snickering. That's one UGLY photo subject) Centered frame on the doorknob bumper and shot the following:
1 - At 28 (full wide)
2 - At 200 (zoomed in all the way)
3 - At 200 with Digital Zoom
4 - At 200 with VO
5 - At 200 with OLY
I then pulled these pix into photoshop, and measured three things:
The vertical pixel dimension of the bumper
The effective resolution of the zoom with all vignetting cropped out (good resolution)
The effective resolution of the zoom with correctable vignetting remaining, but all other vignetting cropped out (correctable resolution)
Data
------
Shot: 28mm (full wide-angle)
Good Resolution: 2560x1920
Correctable Res: 2560x1920
Subject Dimension: 47
Effective Multiplier: 1x
Shot: 200mm
Good Resolution: 2560x1920
Correctable Res: 2560x1920
Subject Dimension: 310
Effective Multiplier: 6.5x
Shot: 200mm + Digital Zoom
Good Resolution: 1280x960
Correctable Res: 1280x960
Subject Dimension: 310
Effective Multiplier: 6.5x
Shot: 200mm + VO
Good Resolution: 1600x1200
Correctable Res: 2048x1536
Subject Dimension: 390
Effective Multiplier: 8.3x
Shot: 200mm + OLY
Good Resolution: 2048x1536
Correctable Res: 2560x1920
Subject Dimension: 432
Effective Multiplier: 9.2x
Observations:
------------------
1) Apparently, our friends at Minolta "rounded" 6.5x up to 7x for marketing purposes. Further, this is 6.5x from the wide angle position, and not the normal 50mm 1-1 focal length. The approximate multiplier of the D7i at full zoom to what you actually see is only about 4x.
2) Despite the fact that the VisionOptics is a "2x" multiplier, and the A-200 is a "1.5x" multiplier, the A-200 has more magnification. In fact, it looks as though the VO is a "1.25x" unit, and the A-200 is a "1.4x" unit (+ change). I don't mean to be hard on people, but the A-200 performance is "close enough" to what is stated. IMO, the VO is a joke.
3) The vignetting and distortion on the VO was pretty bad, but even cropped images were better than the digital zoom on the camera. That said, I don't think I get much out of it. It is going to a friend's camcorder today.
4) I saw no significant change in vignetting in the A-200 from about 125mm to 200mm - so it is much more flexible from a framing standpoint.
Conclusions:
----------------
The A-200 is vastly superior to the VO, and adds a lot of value to the D7i. The VO adds very little value.
With the A-200, my birdfeeder shots will be that much easier to get now - and a slight crop will leave me with 3.2 megapixel images with no edge distortion or vignetting. That's really pretty nice.
I ordered the A-200 from B&H on Sunday. I paid for overnight shipping and it arrived this morning. I had no problems with them.
I can't wait to get out of work and go "play" in the yard this evening.
mark Cooper
Forum Enthusiast
Hi Laird thanks for the info. Please post some pics on here or send them to me via email. have you a price for the A-200 1.5x
Looking forward to the pics
Coopes
http://www.markcooper.me.uk
http://homepage.ntlworld.com/mark_cooper
Looking forward to the pics
Coopes
http://www.markcooper.me.uk
--
http://homepage.ntlworld.com/mark_cooper
Laird Williams
Active member
Coopes,
I got the A200 from B&H photo for $84.95(U.S.) + shipping.
I checked just now, and they claim to still have them in stock.
I do not know if they ship overseas.
http://www03.bhphotovideo.com/default.sph/FrameWork.class?FNC=ProductActivator__Aproductlist_html___39220___OLTLIS1___USA___CatID=0___SID=EF9969150B0
I'll put together a complete write-up with my test images on my own site in the next couple of days.
http://www.l-n-l.com
-L
I got the A200 from B&H photo for $84.95(U.S.) + shipping.
I checked just now, and they claim to still have them in stock.
I do not know if they ship overseas.
http://www03.bhphotovideo.com/default.sph/FrameWork.class?FNC=ProductActivator__Aproductlist_html___39220___OLTLIS1___USA___CatID=0___SID=EF9969150B0
I'll put together a complete write-up with my test images on my own site in the next couple of days.
http://www.l-n-l.com
-L
You might want to try a Olympus C-210 (1.9X)converter. I have one and use it often on the C2100UZ.(UZI) And just like my Oly A-200, it has 49mm threads . Image sharpness is excellent but it does produces a slight vignetting at full zoom with the UZI. I don't mind the slight darkening at all however it can be eliminated by cropping or PS.
You need good light for this lens too.The lens is very compact and lightweight .
It comes with a sliding lens hood and costs about $89.00. I think I got mine at Adoramma or B+H.
If I had a D7i I wouldn't hesitate to look into this option. There is a good chance it would work well on the D7I. Just a suggestion, thats all.
John
You need good light for this lens too.The lens is very compact and lightweight .
It comes with a sliding lens hood and costs about $89.00. I think I got mine at Adoramma or B+H.
If I had a D7i I wouldn't hesitate to look into this option. There is a good chance it would work well on the D7I. Just a suggestion, thats all.
John
Try the Olympus C-210 @ 1.9X. It works swell with the Oly C2100UZ and should work well with the D7I too. If you can live with the slight vignetting (or crop ,or use PS) you will find image quality as good as the Oly A-200 or B300 lenses. It is lightweight and very compact , has 49mm threads , a sliding hood, and costs approx $89.00 . I think I bought mine at B&H or Adorrama
If I had a D7i I would definitely look into this lens.
good luck, John.
If I had a D7i I would definitely look into this lens.
good luck, John.
CBrook
Well-known member
John,
Checking this testimonial page:
http://webpages.charter.net/bbiggers/DCExperiments/html/d7_add_on_lenses.html
they say that this lens has severe vignetting on the Dimage 7. Too bad, as it has a very good zoom level. Sounds like, for high mags, the B-300 is the best. For lesser mag, the A-200 is second. I am thinking of ordering one of these myself. I would like to get the higher mag level (
All I know is stay away from the Crystal Optics/ Titanium 2x lenses. I am in the process of returning them and they only give 1.25x in reality, plus the vignetting makes them useless.
Rgds, Chris
CBrook
Well-known member
Please disregard the last subject there. don't know where that came from. The message is still valid... ;^)
Laird Williams
Active member
Ok folks,
I put up a page that takes you through my little experiment with the D7i and the teleconverters. The page includes the original pix used to do the analysis. Knock yourselves out.
-Laird
http://www.l-n-l.com/telecon.htm
I put up a page that takes you through my little experiment with the D7i and the teleconverters. The page includes the original pix used to do the analysis. Knock yourselves out.
-Laird
http://www.l-n-l.com/telecon.htm
Douglas Boyd
Leading Member
Laird,
I was in the camera store looking for a B300 or A200. They were sold out but had a 1.3X teleconverter called the Olympus IS/L Lens E-1.3X H.Q. Teleconverter. I was impressed by its light weight and large diameter front objective which should preserve the f3.5 at full telephoto. There was no vignetting.
Although it is only 1.3X, I decided to buy it. Preliminary testing shows great resolution and contrast, and confirmed my expectation that the light weight would make it easy to carry. Although 1.3X seems low, it does give more reach and helps with portraits to throw the background out-of-focus.
--Doug Boyd
I was in the camera store looking for a B300 or A200. They were sold out but had a 1.3X teleconverter called the Olympus IS/L Lens E-1.3X H.Q. Teleconverter. I was impressed by its light weight and large diameter front objective which should preserve the f3.5 at full telephoto. There was no vignetting.
Although it is only 1.3X, I decided to buy it. Preliminary testing shows great resolution and contrast, and confirmed my expectation that the light weight would make it easy to carry. Although 1.3X seems low, it does give more reach and helps with portraits to throw the background out-of-focus.
--Doug Boyd
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