Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
05-20-2022, 07:02 PM   #38326
Pentaxian
normhead's Avatar

Join Date: Jun 2007
Location: Near Algonquin Park
Photos: Gallery | Albums
Posts: 39,426
QuoteOriginally posted by Lowell Goudge Quote
That’s a pretty rare lens but I have seen a few show up lately on eBay. One question I have is whether it is also comparable with the sigma teleconverters, that protrude into the rear of the lens, and require an opening 35mm in diameter and 15.mm deep. Like the Pentax L rear converters but not as extreme
The Tamron TC first element is maybe 3/8 inch recessed. The back of the lens is maybe 3mm back. Nothing protrudes, anywhere.

05-20-2022, 07:12 PM   #38327
Site Supporter
Site Supporter
Lowell Goudge's Avatar

Join Date: Jan 2007
Location: Toronto
Photos: Gallery | Albums
Posts: 17,136
QuoteOriginally posted by normhead Quote
The Tamron TC first element is maybe 3/8 inch recessed. The back of the lens is maybe 3mm back. Nothing protrudes, anywhere.
Ok interesting. The sigma and Pentax 300/2.3 lenses have a deeply recessed rear element and the teleconverters protrude into the lens..

It really means you need to find a tamron 2x AF TC to use the lens with a TC to 600 mm
05-23-2022, 11:17 PM - 3 Likes   #38328
Senior Member
blankmampf's Avatar

Join Date: Feb 2021
Location: Lübeck
Posts: 132
Haven't posted or used my Tamron 400/4 in a long while, until this Sunday





05-24-2022, 03:41 AM - 12 Likes   #38329
Loyal Site Supporter
Loyal Site Supporter
WPRESTO's Avatar

Join Date: Aug 2010
Location: Massachusetts
Photos: Gallery | Albums
Posts: 52,770
Pany G9 with Oly 300mm f4 + Oly 1.4XTC + major crop

Attached Images
View Picture EXIF
DC-G9  Photo 
05-24-2022, 08:42 AM - 1 Like   #38330
Seeker of Knowledge
Loyal Site Supporter
aslyfox's Avatar

Join Date: Aug 2016
Location: Topeka, Kansas
Photos: Gallery | Albums
Posts: 23,946
on the hunt

Serengeti 2019

K 3 PP + HD PENTAX-D FA 150-450mm F4.5-5.6 ED DC AW

heavily cropped pp done
Attached Images
View Picture EXIF
PENTAX K-3 II  Photo 
05-24-2022, 10:38 AM - 15 Likes   #38331
Loyal Site Supporter
Loyal Site Supporter
jacamar's Avatar

Join Date: Feb 2011
Location: Toronto
Photos: Albums
Posts: 2,975
Warbling Vireo



Eastern Kingbird



Blackpoll Warbler - only the third time I have seen this bird and the first opportunity to photograph.

05-24-2022, 07:35 PM - 18 Likes   #38332
Loyal Site Supporter
Loyal Site Supporter




Join Date: May 2015
Location: Melbourne
Posts: 1,258
Brolga.
K-3 Mark III, DFA 150-450, handheld. See exif for shot details.

Cheers,
Terry

Attached Images
View Picture EXIF
PENTAX K-3 Mark III  Photo 
05-24-2022, 09:34 PM - 10 Likes   #38333
Loyal Site Supporter
Loyal Site Supporter




Join Date: May 2015
Location: Melbourne
Posts: 1,258
Great Egret, departing.
K-3 Mark III, DFA 150-450 handheld. See exif for shot details.

Cheers,
Terry
Attached Images
View Picture EXIF
PENTAX K-3 Mark III  Photo 
05-26-2022, 09:39 PM - 16 Likes   #38334
Loyal Site Supporter
Loyal Site Supporter




Join Date: May 2015
Location: Melbourne
Posts: 1,258
Little Wattlebird.
K-3 Mark III, DA* 300 handheld. See exif for shot details.

Cheers,
Terry
Attached Images
View Picture EXIF
PENTAX K-3 Mark III  Photo 
05-26-2022, 11:12 PM   #38335
Site Supporter
Site Supporter
K2 to K50's Avatar

Join Date: Jan 2019
Location: Ipswich QLD Australia
Photos: Gallery | Albums
Posts: 3,242
QuoteOriginally posted by tduell Quote
Little Wattlebird.
K-3 Mark III, DA* 300 handheld. See exif for shot details.

Cheers,
Terry
Top shot, excellent detail!
05-27-2022, 12:28 AM - 1 Like   #38336
Site Supporter
Site Supporter
Digitalis's Avatar

Join Date: Mar 2009
Location: Adelaide,South Australia.
Posts: 10,933
Young Galahs always have difficulty remaining upright when perching on power lines.


Pentax KP - Sigma 100-300mm f/4 APO EX DG @ 220mm ISO 800 1/640th f/5.6
05-27-2022, 03:35 PM   #38337
Loyal Site Supporter
Loyal Site Supporter




Join Date: May 2015
Location: Melbourne
Posts: 1,258
QuoteOriginally posted by K2 to K50 Quote
Top shot, excellent detail!
Thanks.

Cheers,
Terry
05-27-2022, 10:29 PM   #38338
Pentaxian




Join Date: Apr 2011
Photos: Albums
Posts: 7,660
QuoteOriginally posted by Digitalis Quote
Young Galahs always have difficulty remaining upright when perching on power lines.


Pentax KP - Sigma 100-300mm f/4 APO EX DG @ 220mm ISO 800 1/640th f/5.6
Quite a good picture of the pole top arrangement showing the great advantages of the Stobie pole.
05-28-2022, 09:53 PM - 3 Likes   #38339
Loyal Site Supporter
Loyal Site Supporter
Paul the Sunman's Avatar

Join Date: Aug 2011
Location: Melbourne
Photos: Gallery
Posts: 4,214
The coolest dude

05-28-2022, 10:37 PM - 13 Likes   #38340
Loyal Site Supporter
Loyal Site Supporter




Join Date: May 2015
Location: Melbourne
Posts: 1,258
Brown Falcon.
K-3 Mark III, DA* 300 handheld. See exif for shot details.

Cheers,
Terry
Attached Images
View Picture EXIF
PENTAX K-3 Mark III  Photo 
Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
300mm, 300mm plus lens, 560mm, beach, birds, canada, chickadee, club, coast, couple, dogs, feb, flickr, friend, gulf, half, lens club, lenses, love, moon, pentax lens, pm, post, scene, sea, series, shore, shot, sigma, sunset, wife
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Sigma Lens Club- All lenses Blue Lens Clubs 2909 4 Hours Ago 07:40 AM
Soviet lenses club Voe Lens Clubs 4170 9 Hours Ago 02:58 AM
Wanted - Acquired: Long lens >300mm in K-mount pop4 Sold Items 1 10-03-2010 03:03 AM
Pentax DA 55-300mm vs Tamron 70-300mm at long end (brickwall) tcdk Pentax SLR Lens Discussion 17 11-15-2009 12:52 AM



All times are GMT -7. The time now is 12:16 PM. | See also: NikonForums.com, CanonForums.com part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top