George. I appreciate your advice and it makes sense to a point, but can I ask a question. Would you use your 400mm against your F300 plus the 1.7 converter for wildlife shots?

To a point, the cost is not the issue. Finding a 300mm f4.5 or a F4 is, or any 300mm come to that.

regards Thoramay.

John. Thanks for your interest. I have the Tamron 70-300 and am disappointed with it. I am judging my efforts against those that I see in the 300mm plus club on the Pentaxforum.com site.

I am aware that it takes a lot of practice to achieve those results but clearly a huge factor is a prime 300mm lens.

I find that my 100-300 lens achieves the best results. The 400-600 reflex is superb but not a wildlife lens.

I have just spent ten days holiday in Ireland and visited a wetland centre. I had my Tamron 18-250 lens with me. I was simply too far away to get any decent shots, even through cropping. There were others there with longer lens achieving very satisfactory results.

Maybe it is just the 'wants' within me but I lust after a 300mm lens that I can use with my Pentax 1.7 converter.

I see that you have the DA 300 f4 lens. Presumably you use this for wildlife rather than the 70-300.

I am shooting Raw with the K10. I hear good reports of the 55-300mm but as good as this might be, I cannot imagine that it would match a prime 300mm lens. Maybe good fortune will be kind to me. I shall have to keep searching.

How do you rate the Sigma 300 f4 APO?

regards thoramay

Thanks. I have three zooms to 300mm, plus the Tamron 500 mirror and the Pentax reflex 400-600. None of these produce the kind of result that I want with wildlife.

Having seen some of thbe results using a prime 300mm lens, I want one, be it Pentax or other, idealy the Pentax 300 f4.5 which can produce stunning shots coupled with the Pentax 1.7 converter.

I have trawled the internet to most shops in major towns in this country for three months without success.

I now know of a 300 TAK f4 and was just wondering!! I know Chris has a 300 f4 but it is just out of my present cash flow.

Thinking of trading the reflex 400-600 in mint condition should anyone be interested for a 4.5. Any takers??

regards thoramay

Has anyone evperience of this lens, please. Will it be effective with a Pentax 1.7 converter to change it into auto mode. How does it rate.

regards Thoramay.

Stefan Have followed your link. Have you installed one of these?
Seems a bit hairy to me with my shaky hands. I would still like one. Would you reccommend I take the plunge and get a competent friend to fit it. I have the K10 and not sure which one I would need.

Do you know if the new screen comes with all the instructions that are given on their site? Just a little nervious.

regards Thoramay.

Had a similar issue but then fitted a Pentax Eye cup M and it has made so much difference for me. Not sure if they are still available.

regards Thoramay.

Hefty. Have experimented with the Mamiya lens 150mm on the K10, but borrowed the lens. Hoped to use with the 1.7 converter. Discovered that the 150 was 3.5 and did not work well with the 1.7. I undestand that the 1.7 needs F4 or more to be successful??

I was pleased with the result without the converter, but am aiming at wildlife shots, so have not pursued this farther.

I am interested if the 6x7 would allow me to shoot wildlife using the converter. With no 300mm lens in sight I am still tempted and would also be interested in any comments from trhose who have tried this.

The other Pentax site has a 300mm plus thread and there is interesting comments there on the use of the 6x7 on digital. Might be worth a visit.

regards Thoramay.

Hi Les. Picked a good week to come to the Island. It is raining this morning. First rain for weeks.

Guess all the coaches will be pouring into Newport. Must remember to head to the beaches. Should be lots of room for sandcastles and no queueing for ice creams!!

Trev. Lots of Pentax lens and experience to share, if it suits you.

regards Thoramay.

Much like buying toothpaste before buying the toothbrush but I cannot fault your judgement.

The lens is magic. Look forward to seeing your macro attempts. I warn you that it is as adictive as it is frustrating.

regards Thoramay

Lovely smiles..but..for me the eyes are not sparkling. I know it is possible, but I don't know how, to put a highlight in their eyes.

Maybe, as has been mentioned, that the b&w trnsformation has lost some of the sparkle of this shot.

You could think of better ways to frame this, yet, for me, the eyes are the windows of a portrait. If they do not communicate with a sparkle, especially children, then the pic looks dull.

Just my take of the pic.

regards Thoramay.